# Docmint > Docmint is a browser-based PDF toolkit: 28 tools for compressing, merging, splitting, organising, converting, signing, protecting and inspecting PDFs and images, all processed locally on the user's device with no file uploads. It is free for a daily number of runs, with an unlimited Pro plan. Key facts: - Every tool runs client-side in the browser (JavaScript + WebAssembly). Files are never uploaded or stored. - Free with a daily allowance: 3 runs a day without an account, 10 with a free account; Pro ($3.25/month billed yearly) is unlimited. No watermarks. Works in current Chrome, Edge, Firefox and Safari. - Inputs: PDF, JPG, PNG, WebP. Outputs: PDF, JPG, PNG, WebP, TXT, Markdown. - PDF encryption uses AES-256; OCR runs locally with Tesseract compiled to WebAssembly. - Assistant: on the home page users can drop files and describe the job in plain words ("get it under 2 MB and add a password"); Docmint plans the steps, chains the tools and runs them in the browser. The assistant sees only the request and file facts (name, size, page count), never document contents. - Contact: hello@docmint.io. Last updated 2026-11-02. ## Edit & Optimize All edit & optimize tools: https://docmint.io/tools/edit - [Compress PDF](https://docmint.io/compress-pdf): Reduce PDF file size with safe optimization, local processing, and no retained files. - [Delete Pages](https://docmint.io/delete-pages): Safe PDF page removal with local processing. Delete pages privately — no server access required. - [Watermark PDF](https://docmint.io/watermark-pdf): Private PDF watermarking in your browser. Add custom text or image watermarks without uploading files anywhere. - [Rotate PDF](https://docmint.io/rotate-pdf): Secure PDF rotation in your browser. Rotate pages locally — your files never leave your device. - [Add Page Numbers](https://docmint.io/page-numbers): Stamp page numbers in any position and format — 'Page 3 of 12', Roman numerals, custom start — privately. - [Crop PDF](https://docmint.io/crop-pdf): Trim margins or crop every page to a custom area with a live preview. No upload, no quality loss. - [Resize Pages](https://docmint.io/resize-pdf): Scale every page to A4, Letter, Legal, A3 or a custom size, fitting or filling the sheet. Local only. - [Grayscale PDF](https://docmint.io/grayscale-pdf): Convert a colour PDF to grayscale for cheaper printing and smaller files, entirely in your browser. ## Organize & Merge All organize & merge tools: https://docmint.io/tools/organize - [Merge PDF](https://docmint.io/merge-pdf): Private PDF merging on your device. Combine multiple files into one document — no servers involved. - [Split PDF](https://docmint.io/split-pdf): Safe PDF splitting with local processing. Extract specific pages without uploading to any server. - [Organize Pages](https://docmint.io/organize-pdf): Visual page editor: drag to reorder, rotate, duplicate, delete or insert blank pages — all on your device. - [N-up / Booklet](https://docmint.io/nup-pdf): Lay out 2, 4, 6 or 9 pages per sheet, or build a print-ready booklet imposition, without uploading. ## Convert & Export All convert & export tools: https://docmint.io/tools/convert - [PDF to JPG](https://docmint.io/pdf-to-jpg): Private PDF conversion with zero uploads. Convert pages to high-quality images — completely offline. - [JPG to PDF](https://docmint.io/jpg-to-pdf): Secure image-to-PDF conversion on your device. Create PDFs from images with complete privacy. - [PDF to PNG](https://docmint.io/pdf-to-png): Export PDF pages as lossless PNG images with transparency support, right in your browser. - [Text to PDF](https://docmint.io/text-to-pdf): Paste text or Markdown, or drop a .txt/.md file, and get a cleanly typeset PDF. No upload. ## Security & Protection All security & protection tools: https://docmint.io/tools/security - [Protect PDF](https://docmint.io/protect-pdf): Secure PDF password protection locally. Add AES-256 encryption without exposing files to any server. - [Unlock PDF](https://docmint.io/unlock-pdf): Safe PDF password removal on your device. Unlock files privately with zero server uploads. - [Edit Metadata](https://docmint.io/edit-metadata): View and edit title, author, subject, keywords and dates, or strip all metadata for privacy. - [Flatten PDF](https://docmint.io/flatten-pdf): Flatten form fields and annotations into static content, or rasterise pages so nothing can be edited. Local only. ## Sign & Annotate All sign & annotate tools: https://docmint.io/tools/sign - [Sign PDF](https://docmint.io/sign-pdf): Draw, type or upload a signature and place it on any page. Your signature never leaves your device. ## Inspect & Extract All inspect & extract tools: https://docmint.io/tools/analyze - [PDF to Text](https://docmint.io/pdf-to-text): Pull all text out of a PDF into a clean TXT or Markdown file, with a copyable preview. No upload. - [OCR PDF](https://docmint.io/ocr-pdf): Recognise text in scanned PDFs and photos, then download a searchable PDF or plain text — all in your browser. - [Compare PDFs](https://docmint.io/compare-pdf): Spot every added, removed or changed line between two PDF versions, side by side, without uploading. - [Inspect PDF](https://docmint.io/pdf-info): See page count, page sizes, metadata, encryption, fonts, forms and word count at a glance — nothing uploaded. ## Image Tools All image tools tools: https://docmint.io/tools/image - [Compress Image](https://docmint.io/compress-image): Shrink images by adjusting quality and maximum dimensions, with before/after size shown. Local only. - [Convert Image](https://docmint.io/convert-image): Convert JPG, PNG, WebP, GIF, BMP, SVG and HEIC between formats in your browser, in bulk. - [Resize Image](https://docmint.io/resize-image): Resize images by exact pixels, percentage or to fit a box, in bulk, keeping aspect ratio. Local only. ## Describe the job instead of picking a tool - [Home](https://docmint.io/): one box for files or a request. Submitting opens a workspace where each answer is a plan of tool steps (for example Compress PDF then Protect PDF) that runs on the device, each step working on the previous result. Interactive tools such as Sign PDF and Organize PDF open with the file already loaded and hand the result back. - What it cannot do: create Word, Excel or PowerPoint files, translate, summarise or answer questions about document contents, edit existing text, fill in forms or redact. It says so and offers the closest tools instead. - Passwords typed into a request are removed in the browser before anything is sent and filled into the protect or unlock step locally. - [Pipelines](https://docmint.io/pipeline): chain tools into a reusable pipeline (for example Unlock → Compress → Protect, or Scans → OCR → Compress) and run it on many files at once. Each step feeds the next with no download in between; pipelines can be saved in the browser or shared as a link that holds only the steps and settings. - Every tool page also offers "Continue with": the result opens in the next tool directly, without downloading and re-uploading. ## Guides - [How to Compress PDF — Complete Guide](https://docmint.io/blog/how-to-compress-pdf): Learn the best methods to reduce PDF file size while maintaining quality. Step-by-step guidance for different document types. - [How to Merge PDF Files](https://docmint.io/blog/how-to-merge-pdf-files): The ultimate guide to combining multiple PDF files into one document. Best practices, ordering tips and common mistakes to avoid. - [Reduce PDF File Size: 8 Proven Methods Compared](https://docmint.io/blog/reduce-pdf-file-size-methods-compared): A complete comparison of eight ways to reduce PDF file size, with notes on which works best for each document type and privacy need. - [Best Free PDF Tools: Privacy-Focused Comparison](https://docmint.io/blog/best-free-pdf-tools-privacy-comparison): A comprehensive look at free PDF tools that prioritise privacy. See which tools process files locally and which upload them to servers. - [How to Compress a PDF for Email](https://docmint.io/blog/compress-pdf-for-email): Most email providers cap attachments around 20 to 25 MB. Compress the PDF with a Balanced setting, aim well below the limit, and split it if needed. - [How to Delete Pages From a PDF Without Acrobat](https://docmint.io/blog/delete-pages-from-pdf-without-acrobat): Open the PDF in a browser-based page remover, click the pages or type a range like 2, 5-7, check the remaining count, and download a clean copy. - [How to Watermark a PDF With Text or a Logo](https://docmint.io/blog/how-to-watermark-a-pdf): Add a CONFIDENTIAL or DRAFT stamp or a logo to every page, set opacity and position, tile it if needed, and know what a watermark does not protect. - [How to Fix Sideways or Upside-Down Pages in a PDF](https://docmint.io/blog/fix-sideways-upside-down-pdf-pages): Rotate only the pages that are wrong, or all of them, by 90 or 180 degrees and save. Rotation is stored in the page, so quality is untouched. - [How to Add Page Numbers to a PDF](https://docmint.io/blog/add-page-numbers-to-pdf): Pick a format such as Page 3 of 12 or Roman numerals, choose the position, skip the cover with a start page, and stamp the numbers as real text. - [How to Crop PDF Margins and Remove Scanner Borders](https://docmint.io/blog/crop-pdf-margins-remove-scanner-borders): Drag a crop box or type exact margins, use auto-trim for white space, apply it to all pages or a range, and know how cropping differs from resizing. - [How to Change a PDF's Page Size to A4 or US Letter](https://docmint.io/blog/change-pdf-page-size-a4-letter): Resize every page to A4 or US Letter, choose Fit to keep all content visible or Fill to cover the sheet, and print without clipped margins. - [Convert a Color PDF to Black and White for Printing](https://docmint.io/blog/convert-color-pdf-to-black-and-white-for-printing): Convert a color PDF to grayscale or pure black and white before printing to save color toner, get predictable output and often a smaller file. - [How to Combine Receipts Into One PDF for Expenses](https://docmint.io/blog/combine-receipts-and-invoices-into-one-pdf-for-expenses): Collect receipt photos and PDF invoices, name them by date, merge them into one PDF in order, then compress it so it uploads to your expense system. - [How to Split a PDF Into Pages or Extract a Page Range](https://docmint.io/blog/split-pdf-into-separate-pages-or-page-range): Split a PDF into one file per page, into chunks of N pages, or extract a range such as 1-3, 5 into a new file, without losing any quality. - [How to Reorder, Rotate and Remove PDF Pages at Once](https://docmint.io/blog/reorder-rotate-remove-pdf-pages-in-one-pass): Fix page order, sideways pages, unwanted pages and missing blanks in one pass with a visual page board, then save one clean PDF at full quality. - [How to Print Multiple PDF Pages per Sheet](https://docmint.io/blog/print-multiple-pdf-pages-per-sheet): Place 2, 4, 6 or 9 PDF pages on each sheet, or build a folded booklet, to save paper and make handouts, while keeping the text readable. - [How to Convert PDF Pages to JPG for Slides and Chat](https://docmint.io/blog/convert-pdf-pages-to-jpg-for-slides-and-chat): Turn PDF pages into JPG images for slides and chat apps: pick 150 DPI, quality around 85, and convert only the pages you actually need to share. - [How to Turn Phone Photos of Documents Into One PDF](https://docmint.io/blog/turn-phone-photos-of-documents-into-one-pdf): Combine phone photos of a document into one PDF in the right order, pick A4 or Letter pages, then compress it or make it searchable with OCR. - [PDF to PNG or JPG: Which Image Format Should You Choose?](https://docmint.io/blog/pdf-to-png-or-jpg-which-format): Pick PNG for text, diagrams and transparent backgrounds, and JPG for photo-heavy pages where small files matter. Here is how to decide. - [How to Turn Plain Text or Markdown Into a Clean PDF](https://docmint.io/blog/convert-text-or-markdown-to-pdf): Paste text or Markdown, or drop a .txt or .md file, choose a font and page size, and download a typeset PDF with real, selectable text. - [How to Password-Protect a PDF and What Permissions Do](https://docmint.io/blog/password-protect-pdf-permissions-explained): Set an open password to encrypt a PDF with AES-256. Learn what printing and copying restrictions can and cannot enforce, and how to share passwords. - [How to Remove a Password From a PDF You Own](https://docmint.io/blog/remove-password-from-pdf): If you know the password, you can save an unencrypted copy of your PDF in seconds. Here is how, plus what to do about permission-only locks. - [How to View and Remove PDF Metadata Before Sharing](https://docmint.io/blog/view-and-remove-pdf-metadata): PDFs often carry your name, software version and dates. See what your file reveals, strip it in one click, or set a clean title instead. - [What Flattening a PDF Means and When to Do It](https://docmint.io/blog/what-is-flattening-a-pdf): Flattening turns form fields, comments and signatures into fixed page content. Learn when to flatten, and when to rasterize pages instead. - [How to Sign a PDF With a Drawn, Typed or Uploaded Signature](https://docmint.io/blog/sign-pdf-online-drawn-typed-uploaded-signature): Draw, type or upload your signature, place and resize it on the page, and download the signed PDF. Learn how this differs from a digital certificate. - [How to Extract Text From a PDF (and When You Need OCR)](https://docmint.io/blog/how-to-extract-text-from-pdf): Drop the PDF into a text extractor, then copy the text or download it as TXT or Markdown. If nothing comes out, the PDF is a scan and needs OCR first. - [How to Make a Scanned PDF Searchable With OCR](https://docmint.io/blog/make-scanned-pdf-searchable-ocr): Run the scan through OCR to add an invisible text layer so you can search, select and copy its words. Here is how to get accurate results. - [How to Compare Two Versions of a PDF and See What Changed](https://docmint.io/blog/compare-two-pdf-versions-see-changes): Load the original and the revised PDF into a text comparison tool to see every added, removed or changed line. Here is how, and what it cannot catch. - [How to Check a PDF's Page Size, Fonts and Security Settings](https://docmint.io/blog/check-pdf-page-size-fonts-security): Open the PDF in an inspector to see page sizes, embedded fonts, encryption and metadata. Here is what each field means before you print or submit it. - [How to Compress Images for a Website or Upload Form](https://docmint.io/blog/compress-images-for-website-upload-form): Lower the quality to around 75 to 85 and cap the width to shrink images with no visible loss. Here is how to pick settings for websites and size limits. - [JPG, PNG or WebP: Converting Images to the Right Format](https://docmint.io/blog/jpg-png-webp-convert-image-format): Use JPG for photos that must open anywhere, PNG for transparency and sharp graphics, and WebP for smaller web images. Here is how to convert between them. - [How to Resize Photos to Exact Pixel Dimensions](https://docmint.io/blog/resize-photos-exact-pixel-dimensions): Enter the width and height you need in pixels, keep the aspect ratio locked, and resize. Here is how to meet profile photo and application form rules. ## Other pages - [All tools](https://docmint.io/tools): searchable index of every tool - [Pricing](https://docmint.io/pricing): free plan plus optional Pro and Business plans - [About](https://docmint.io/about): who makes Docmint and how it handles files - [Privacy policy](https://docmint.io/privacy) - [Machine-readable tool index (JSON)](https://docmint.io/tools.json) - [Full documentation for LLMs](https://docmint.io/llms-full.txt) - [Guides RSS feed](https://docmint.io/feed.xml) - [For AI agents](https://docmint.io/ai): machine-readable files and facts to rely on ## For AI agents and developers Docmint ships an MCP (Model Context Protocol) server for Claude, Claude Code, Cursor, VS Code, Windsurf and other MCP clients, exposing the tools (merge_pdf, compress_pdf, ocr_pdf, protect_pdf, inspect_pdf and more). It runs locally (`npx -y docmint-mcp`), so files stay on the user's machine. Setup per app: https://docmint.io/mcp. Connect it to a Docmint account with `npx -y docmint-mcp login` or the connect_docmint_account tool; runs then use that account's plan, shared with the website. ## FAQ **What is Docmint?** Docmint is a browser-based PDF toolkit: 28 tools for compressing, merging, splitting, organising, converting, signing, protecting and inspecting PDFs and images, all processed locally on the user's device with no file uploads. It is free for a daily number of runs, with an unlimited Pro plan. **Is Docmint free?** Yes, with a daily allowance: 3 runs a day without an account and 10 with a free account, across every tool, with no watermarks. Pro ($3.25 a month billed yearly, or $4.99 monthly) removes the limit on the website and through the MCP server. **Does Docmint upload my files?** No. Files are processed inside your browser using JavaScript and WebAssembly. Nothing is sent to a server, nothing is stored, and closing the tab discards the file. **Which file types does Docmint support?** PDF for all document tools, plus JPG, PNG and WebP for the image tools and for image-to-PDF conversion. Output is standard PDF, JPG, PNG, WebP, TXT or Markdown. **Which browsers work with Docmint?** Any current version of Chrome, Edge, Firefox or Safari on desktop or mobile. No installation or extension is needed. **Is there a file size limit?** There is no server limit because nothing is uploaded. Very large files (hundreds of megabytes) depend on the memory available to your browser. **Can Docmint password-protect and unlock PDFs?** Yes. Protect PDF encrypts with AES-256 and sets permissions; Unlock PDF removes a password you know. Both run locally. **Can Docmint make scanned PDFs searchable?** Yes. The OCR tool recognises text in scanned PDFs and photos in the browser and produces a searchable PDF or plain text. --- # Tool documentation # Edit & Optimize ## Compress PDF URL: https://docmint.io/compress-pdf Category: Edit & Optimize Reduce PDF file size with professional optimization. Choose a lossless clean-up or a stronger image re-encode. Files are processed on your device and never stored. Accepts: PDF Can process several files in one batch. ### How to use 1. Upload your PDF: Drag a PDF into the drop zone or click to browse. You can add several files to compress them in one batch. 2. Pick a compression level: Lossless clean-up rewrites the file structure without touching page content. Balanced and Strong re-encode page images at a lower resolution for much bigger savings. Tip: Start with Balanced. Use Strong for scanned documents that are mostly images. 3. Compress and download: Click Compress PDF. You will see the original size, the new size and the percentage saved before you download. Tip: If text looks soft after Strong compression, go back and pick Balanced instead. ### Tips - Scanned documents: Scans are mostly images, so they compress the most. Strong mode at 110 DPI is usually still perfectly readable on screen. - Text-heavy files: PDFs exported from Word are already efficient. Use Lossless to strip unused objects without changing a single pixel. - Email attachments: Most mail providers cap attachments around 20–25MB. Compress first, then merge if you need to send several files. - Keep an original: Compression that re-encodes images cannot be undone. Keep your source file until you are happy with the result. ### FAQ Q: How much smaller will my PDF get? A: It depends on what is inside it. Image-heavy or scanned PDFs often shrink by 60–90%. Text-only PDFs may only shrink a little, because there is not much to remove. Q: Will compression reduce quality? A: Lossless mode never changes page content. Balanced and Strong modes re-render pages as images at a lower resolution, which trades some sharpness for a much smaller file. Q: Is there a file size limit? A: There is no server limit because nothing is uploaded. Very large files (200MB+) may be slow on low-memory devices. Q: Are my files secure while I compress a PDF? A: Yes. Everything happens inside your browser using JavaScript and WebAssembly. Your file is never uploaded, and nothing is stored on a server. Q: Do you keep a copy of my document? A: No. The file lives in your browser's memory only. When you close or refresh the tab it is gone. We cannot see it, and neither can anyone else. ## Delete Pages URL: https://docmint.io/delete-pages Category: Edit & Optimize Remove unwanted pages from any PDF. Click the pages you want to delete, or type a range, and download a clean copy. Accepts: PDF ### How to use 1. Upload the PDF: Drop the file into the tool. Every page is rendered as a thumbnail so you can see exactly what you are removing. 2. Select pages to delete: Click thumbnails to mark them, or type a range such as 2, 5-7, 12 in the box. Selected pages are highlighted in red. Tip: Use the 'Select even' or 'Select odd' shortcuts to clean up double-sided scans. 3. Apply and download: Click Delete Pages. Page content, links and bookmarks on the remaining pages are preserved. ### Tips - Check the count: The button tells you how many pages will remain. A PDF must keep at least one page. - Blank pages from scanners: Duplex scanners often insert empty pages. Select them by eye in the thumbnail grid, or use 'Select even' when every second page is blank. - Need the pages elsewhere?: If you want to keep the deleted pages as a separate file, use Split PDF instead. ### FAQ Q: Can I delete multiple pages at once? A: Yes. Select as many pages as you like by clicking them or by typing ranges like 1-3, 8, 10-12. Q: Does deleting pages change the other pages? A: No. The remaining pages keep their original content, fonts and resolution. Only the removed pages are dropped. Q: Can I undo a deletion? A: Before you download, click a selected page again to unselect it. After downloading, simply re-upload your original file. Q: Are my files secure while I delete pages? A: Yes. Everything happens inside your browser using JavaScript and WebAssembly. Your file is never uploaded, and nothing is stored on a server. Q: Do you keep a copy of my document? A: No. The file lives in your browser's memory only. When you close or refresh the tab it is gone. We cannot see it, and neither can anyone else. ## Watermark PDF URL: https://docmint.io/watermark-pdf Category: Edit & Optimize Stamp a text or image watermark across every page. Control position, size, rotation, colour and opacity, with a live preview. Accepts: PDF Can process several files in one batch. ### How to use 1. Upload your PDF: Drop one or more PDFs. The first page is shown as a live preview of the watermark. 2. Design the watermark: Type the text (for example CONFIDENTIAL or DRAFT) or upload a PNG logo. Set size, rotation, opacity, colour and where it sits on the page. Tip: A 45° diagonal at 15–25% opacity is readable but does not hide the content. 3. Apply and download: Click Add Watermark. The stamp is drawn on every page, or only on the pages you specify. ### Tips - Tiled watermarks: Turn on Tile to repeat the text across the page, which makes it much harder to crop out. - Logos: Use a PNG with a transparent background so only the logo shows. Keep it under 1MB to keep the PDF small. - Behind or on top: A watermark drawn on top is always visible. Choose 'Behind content' to keep text readable on scanned pages. ### FAQ Q: Can I watermark only some pages? A: Yes. Enter a page range such as 1, 3-5 in the Pages field. Leave it empty to stamp every page. Q: Can the watermark be removed later? A: A watermark becomes part of the page content. It can be covered or edited with a PDF editor, so treat it as a deterrent, not as security. Use Protect PDF to restrict editing. Q: What image formats can I use? A: PNG, JPG and WebP. PNG with transparency gives the cleanest result. Q: Are my files secure while I watermark a PDF? A: Yes. Everything happens inside your browser using JavaScript and WebAssembly. Your file is never uploaded, and nothing is stored on a server. Q: Do you keep a copy of my document? A: No. The file lives in your browser's memory only. When you close or refresh the tab it is gone. We cannot see it, and neither can anyone else. ## Rotate PDF URL: https://docmint.io/rotate-pdf Category: Edit & Optimize Rotate all pages at once, or fix individual pages by clicking them in the preview. Accepts: PDF Can process several files in one batch. ### How to use 1. Upload the PDF: Drop your file. Each page shows as a thumbnail with its current orientation. 2. Rotate pages: Use the global buttons to rotate every page 90°, 180° or 270°, or hover a thumbnail to rotate just that page. Tip: Landscape scans in a portrait document usually need a 90° clockwise turn. 3. Save and download: Click Rotate PDF. Rotation is saved as page metadata, so quality is untouched. ### Tips - Mixed orientation: Rotate individual pages when a scan contains both portrait and landscape sheets. - Lossless: Rotation changes a page attribute, not the content, so the file size barely changes. - Even/odd shortcuts: Apply a rotation to only even or odd pages to fix double-sided scans in one click. ### FAQ Q: Can I rotate just one page? A: Yes. Hover any thumbnail and use its rotate buttons. Other pages are left alone. Q: Does rotating reduce quality? A: No. The page is re-displayed at a new angle; the underlying content is not re-encoded. Q: Will the rotation stick in every viewer? A: Yes. The rotation is stored in the PDF page itself, so Acrobat, Preview, Chrome and phones all show it rotated. Q: Are my files secure while I rotate a PDF? A: Yes. Everything happens inside your browser using JavaScript and WebAssembly. Your file is never uploaded, and nothing is stored on a server. Q: Do you keep a copy of my document? A: No. The file lives in your browser's memory only. When you close or refresh the tab it is gone. We cannot see it, and neither can anyone else. ## Add Page Numbers URL: https://docmint.io/page-numbers Category: Edit & Optimize Add page numbers to any PDF. Choose the position, format, font size and starting number, and preview the result before you download. Accepts: PDF Can process several files in one batch. ### How to use 1. Upload the PDF: Drop the file. The first page shows a live preview of the number placement. 2. Choose style and position: Pick a format such as 1, Page 1, 1 / 12 or i, ii, iii. Place it at the bottom centre, outside corners or top. Set size, margin and the first number. Tip: Skip the cover by starting on page 2 and numbering from 1. 3. Apply and download: Click Add Numbers. The numbers are drawn into each page as real vector text. ### Tips - Alternating corners: Choose 'Outside corners' for booklets so numbers sit on the outer edge of each facing page. - Fonts: Helvetica, Times and Courier are embedded in every PDF reader, so numbers render identically everywhere. - Selectable text: Numbers are added as text, so they are searchable and copyable in any viewer. ### FAQ Q: Can I skip the first page? A: Yes. Set 'Start on page' to 2 (or later) and choose what number the first numbered page should get. Q: Can I use Roman numerals? A: Yes. Pick the i, ii, iii or I, II, III format. Q: Will numbers overlap existing content? A: Numbers are drawn in the margin you set. Increase the margin or pick a different position if your pages have content near the edge. Q: Are my files secure while I add page numbers? A: Yes. Everything happens inside your browser using JavaScript and WebAssembly. Your file is never uploaded, and nothing is stored on a server. Q: Do you keep a copy of my document? A: No. The file lives in your browser's memory only. When you close or refresh the tab it is gone. We cannot see it, and neither can anyone else. ## Crop PDF URL: https://docmint.io/crop-pdf Category: Edit & Optimize Trim white margins or crop every page to the area you choose. Drag the crop box on the preview or type exact margins. Accepts: PDF ### How to use 1. Upload the PDF: Drop the file. The first page appears with a crop box you can drag. 2. Set the crop area: Drag the box edges, or type top, right, bottom and left margins in millimetres or percent. Choose whether to apply it to all pages or a range. Tip: Turn on 'Auto-trim whitespace' to detect the content edges for you. 3. Crop and download: Click Crop PDF. The crop is applied as a page box, so the content itself is untouched and remains vector. ### Tips - Lossless: Cropping sets the page's visible box. Nothing is re-rendered, so text stays sharp and searchable. - Presentation slides: Crop the wide margins of slide hand-outs to make them easier to read on phones. - Scanned books: Use different crops for odd and even pages to remove the gutter on each side. ### FAQ Q: Is cropping permanent? A: The cropped area is hidden, not deleted. Some advanced editors can restore it. Use Flatten PDF (rasterize) if you need the cropped content gone for good. Q: Can I crop just one page? A: Yes. Enter a page range in the Pages field. Q: What is auto-trim? A: It analyses the page image to find the edges of the content and sets the crop box tightly around it. Q: Are my files secure while I crop a PDF? A: Yes. Everything happens inside your browser using JavaScript and WebAssembly. Your file is never uploaded, and nothing is stored on a server. Q: Do you keep a copy of my document? A: No. The file lives in your browser's memory only. When you close or refresh the tab it is gone. We cannot see it, and neither can anyone else. ## Resize Pages URL: https://docmint.io/resize-pdf Category: Edit & Optimize Change the page size of a PDF. Scale content to fit A4, Letter, Legal, A3, A5 or any custom size, in portrait or landscape. Accepts: PDF Can process several files in one batch. ### How to use 1. Upload the PDF: The current page sizes are listed so you can see what you are starting from. 2. Choose the target size: Pick a standard size or enter a custom width and height. Choose 'Fit' to keep everything visible or 'Fill' to cover the sheet, and align the content. Tip: Mixed US Letter and A4 documents become uniform with a single pass. 3. Resize and download: Click Resize PDF. Pages are scaled as vectors with no loss of quality. ### Tips - Printing abroad: Convert Letter documents to A4 before printing in Europe to avoid clipped margins. - Keep aspect ratio: 'Fit' never distorts content. 'Stretch' is available but changes proportions. - Auto orientation: Enable 'Match orientation' so landscape pages get a landscape sheet. ### FAQ Q: Does resizing affect quality? A: No. Content is scaled mathematically. Text and vector graphics remain sharp at any size. Q: Can I resize to a custom size? A: Yes. Enter any width and height in millimetres or inches. Q: Are my files secure while I resize pages? A: Yes. Everything happens inside your browser using JavaScript and WebAssembly. Your file is never uploaded, and nothing is stored on a server. Q: Do you keep a copy of my document? A: No. The file lives in your browser's memory only. When you close or refresh the tab it is gone. We cannot see it, and neither can anyone else. ## Grayscale PDF URL: https://docmint.io/grayscale-pdf Category: Edit & Optimize Convert a colour PDF to grayscale or pure black-and-white. Great for cheaper printing and for a consistent look. Accepts: PDF Can process several files in one batch. ### How to use 1. Upload the PDF: Drop the colour document. 2. Choose the mode: Grayscale keeps shades; Black & White thresholds everything for the smallest files. Set the output resolution. 3. Convert and download: Click Convert. ### Tips - Printing: Grayscale PDFs print identically on colour and mono printers, with no surprise toner use. - Resolution: 150 DPI is plenty for office printing. Use 200–300 for small text. - File size: Grayscale JPEG pages are typically a third of the size of colour ones. ### FAQ Q: Will my text stay selectable? A: No. This tool rasterises pages. Use OCR PDF on the result to restore a text layer. Q: Can I convert only some pages? A: Yes. Enter a page range; other pages are copied unchanged. Q: Are my files secure while I convert to grayscale? A: Yes. Everything happens inside your browser using JavaScript and WebAssembly. Your file is never uploaded, and nothing is stored on a server. Q: Do you keep a copy of my document? A: No. The file lives in your browser's memory only. When you close or refresh the tab it is gone. We cannot see it, and neither can anyone else. # Organize & Merge ## Merge PDF URL: https://docmint.io/merge-pdf Category: Organize & Merge Combine multiple PDF documents (and images) into a single file. Drag to reorder, then merge. Accepts: PDF, JPG, PNG, WebP Takes several files as one input. ### How to use 1. Upload multiple PDFs: Select or drag multiple PDF files from your device. Images are accepted too and become one page each. Tip: To select several files at once, hold Ctrl (Windows) or Cmd (Mac) while clicking in the file browser. 2. Arrange the order: Drag files in the list to set the exact order. The first file becomes the first pages of the result. Tip: Use the sort buttons to order by name or date when you have many chapters. 3. Merge and download: Click Merge PDF to combine everything into one document and download it instantly. Tip: The result is named after your first file. Rename it before downloading if you like. ### Tips - Best practices: Name your files clearly before uploading (Chapter1.pdf, Chapter2.pdf). It makes arranging them far easier. - File organization: When merging many files, put them in one folder first so you can select them all in a single click. - Large files: For very large sets (100MB+), close other tabs to free memory and keep processing smooth. - Quality check: Scroll through the merged PDF once to verify page order before sharing it. ### FAQ Q: How many PDFs can I merge at once? A: There is no fixed limit. Combine 2, 10, 50 or more files. The only practical limit is your device's memory. Q: Can I control the page order? A: Yes. Drag and drop the files in the list. The first file becomes the first pages of the merged PDF. Q: What happens to the file size? A: The result is roughly the combined size of all inputs. Run it through Compress PDF afterwards if you need it smaller. Q: Can I mix images and PDFs? A: Yes. JPG, PNG and WebP images are placed on their own page, sized to fit, in the order you choose. Q: Are my files secure while I merge PDFs? A: Yes. Everything happens inside your browser using JavaScript and WebAssembly. Your file is never uploaded, and nothing is stored on a server. Q: Do you keep a copy of my document? A: No. The file lives in your browser's memory only. When you close or refresh the tab it is gone. We cannot see it, and neither can anyone else. ## Split PDF URL: https://docmint.io/split-pdf Category: Organize & Merge Extract specific pages from your PDF, split it into chunks, or save every page as its own file. Accepts: PDF ### How to use 1. Upload the PDF: Drop the file in. Thumbnails of every page appear so you can see what you are splitting. 2. Choose how to split: Extract a custom range into one file, split every N pages, save each range as a separate file, or save every page individually. Tip: Ranges look like 1-3, 7, 10-12. Overlapping ranges are fine. 3. Split and download: Click Split PDF. A single file downloads directly; several files are bundled into a ZIP. ### Tips - Chapters: Use 'Separate file per range' and type one range per chapter to get a neatly named file for each. - Fixed chunks: 'Every N pages' is ideal for breaking a huge scan into email-sized parts. - ZIP output: When more than one file is produced you get a ZIP. Every modern OS opens it with a double click. ### FAQ Q: Can I extract non-consecutive pages? A: Yes. Type 1, 4, 9-11 to pull exactly those pages into one new PDF, in that order. Q: Does splitting lower quality? A: No. Pages are copied as-is, with the same fonts, images and resolution. Q: Why do I get a ZIP file? A: When your split produces more than one PDF, we bundle them so you only download once. Q: Are my files secure while I split a PDF? A: Yes. Everything happens inside your browser using JavaScript and WebAssembly. Your file is never uploaded, and nothing is stored on a server. Q: Do you keep a copy of my document? A: No. The file lives in your browser's memory only. When you close or refresh the tab it is gone. We cannot see it, and neither can anyone else. ## Organize Pages URL: https://docmint.io/organize-pdf Category: Organize & Merge A visual page editor. Drag thumbnails to reorder, rotate or duplicate single pages, delete what you don't need and insert blank pages. Accepts: PDF ### How to use 1. Upload the PDF: Every page appears as a draggable thumbnail. 2. Arrange your pages: Drag pages into a new order. Hover a page to rotate, duplicate or delete it. Use the + button to insert a blank page anywhere. Tip: Click 'Reverse order' to flip a document that was scanned back to front. 3. Save and download: Click Save PDF. The new page order is written to a fresh document with original quality. ### Tips - Keyboard: Select a page and use the arrow keys to move it one step at a time. - Sort helpers: Reverse, move odd pages first, or move even pages first to fix double-sided scans in one click. - Blank pages: Inserted blank pages take the size of the page before them, so they print correctly. ### FAQ Q: Can I move pages between two PDFs? A: Merge them first with Merge PDF, then organize the combined document here. Q: Does duplicating a page double the file size? A: No. Duplicated pages share the same underlying resources, so the file grows only slightly. Q: Is the page quality preserved? A: Yes. Pages are copied, not re-rendered. Q: Are my files secure while I organize pages? A: Yes. Everything happens inside your browser using JavaScript and WebAssembly. Your file is never uploaded, and nothing is stored on a server. Q: Do you keep a copy of my document? A: No. The file lives in your browser's memory only. When you close or refresh the tab it is gone. We cannot see it, and neither can anyone else. ## N-up / Booklet URL: https://docmint.io/nup-pdf Category: Organize & Merge Save paper and create hand-outs. Place 2, 4, 6 or 9 pages on each sheet, or generate a booklet layout ready for duplex printing. Accepts: PDF ### How to use 1. Upload the PDF: Drop the document you want to lay out. 2. Choose the layout: Pick 2-up, 4-up, 6-up or 9-up, the sheet size and orientation, and the gap between pages. Or choose Booklet to reorder pages for folding. Tip: 2-up landscape is the classic slide hand-out layout. 3. Generate and download: Click Create Layout. Pages are embedded as vectors, so the result prints sharp. ### Tips - Booklets: Print the booklet output double-sided (flip on short edge), fold the stack in half, and staple. - Borders: Enable 'Draw borders' to add a thin frame around each page, which helps when cutting. - Page count: Booklets need a multiple of four pages. Blank pages are added automatically. ### FAQ Q: Does N-up reduce quality? A: No. Each page is embedded as a scaled vector form, so text remains sharp and selectable. Q: What is booklet imposition? A: Pages are reordered and paired so that, after double-sided printing and folding, they read in sequence like a small book. Q: Are my files secure while I create an N-up layout? A: Yes. Everything happens inside your browser using JavaScript and WebAssembly. Your file is never uploaded, and nothing is stored on a server. Q: Do you keep a copy of my document? A: No. The file lives in your browser's memory only. When you close or refresh the tab it is gone. We cannot see it, and neither can anyone else. # Convert & Export ## PDF to JPG URL: https://docmint.io/pdf-to-jpg Category: Convert & Export Turn every page of a PDF into a high-quality JPG, PNG or WebP image, at the resolution you need. Accepts: PDF Can process several files in one batch. ### How to use 1. Upload the PDF: Drop your file into the tool. A thumbnail of each page is shown. 2. Choose format and quality: Pick JPG, PNG or WebP, set the resolution (72–300 DPI) and the quality slider. Optionally limit the page range. Tip: 150 DPI is perfect for screens and slides. Use 300 DPI for printing. 3. Convert and download: Click Convert. One page downloads as a single image; several pages come as a ZIP. ### Tips - Transparency: Choose PNG if your pages have transparent areas. JPG always fills them with white. - Smaller files: WebP produces files 25–35% smaller than JPG at the same visual quality. - Social media: Export at 150 DPI and JPG quality 85 for crisp images that upload quickly. ### FAQ Q: What resolution should I use? A: 72–96 DPI for the web, 150 DPI for presentations, 300 DPI for print. Higher DPI means larger images. Q: Can I convert only some pages? A: Yes. Type a page range such as 1-3, 6 before converting. Q: Why is the output a ZIP? A: Multi-page PDFs produce one image per page. We bundle them in a ZIP so you download once. Q: Are my files secure while I convert a PDF to images? A: Yes. Everything happens inside your browser using JavaScript and WebAssembly. Your file is never uploaded, and nothing is stored on a server. Q: Do you keep a copy of my document? A: No. The file lives in your browser's memory only. When you close or refresh the tab it is gone. We cannot see it, and neither can anyone else. ## JPG to PDF URL: https://docmint.io/jpg-to-pdf Category: Convert & Export Turn JPG, PNG and WebP images into a single PDF. Choose page size, orientation and margins. Accepts: JPG, PNG, WebP Takes several files as one input. ### How to use 1. Upload images: Drop one or more images. Drag them into the order you want them to appear. 2. Set the page layout: Choose 'Fit to image' for exact image dimensions, or A4/Letter with portrait or landscape and a margin. Tip: For receipts and scanned documents use A4 with a small margin. 3. Convert and download: Click Create PDF. Each image becomes one page. ### Tips - Photo quality: Images are embedded without re-encoding, so what you upload is what you get. Compress the images first if the PDF is too large. - Phone scans: Photos from phones are usually portrait. Choose auto-orientation so landscape shots get a landscape page. - HEIC files: Convert HEIC to JPG with the Convert Image tool first; browsers cannot read HEIC directly. ### FAQ Q: Which formats are supported? A: JPG, PNG, WebP, GIF (first frame) and BMP. Browsers read these natively. Q: Can I put several images on one page? A: Create the PDF, then use N-up PDF to place 2 or 4 pages per sheet. Q: Will my images be compressed? A: JPGs are embedded as-is. PNG and WebP are embedded losslessly, so quality is never reduced. Q: Are my files secure while I convert images to PDF? A: Yes. Everything happens inside your browser using JavaScript and WebAssembly. Your file is never uploaded, and nothing is stored on a server. Q: Do you keep a copy of my document? A: No. The file lives in your browser's memory only. When you close or refresh the tab it is gone. We cannot see it, and neither can anyone else. ## PDF to PNG URL: https://docmint.io/pdf-to-png Category: Convert & Export Convert PDF pages to lossless PNG images. Ideal for diagrams, screenshots and anything with sharp lines or transparency. Accepts: PDF Can process several files in one batch. ### How to use 1. Upload the PDF: Drop the file and pick the pages you need. 2. Set resolution: Choose 72–300 DPI. PNG is lossless, so there is no quality slider. 3. Convert and download: Click Convert. Multiple pages are bundled in a ZIP. ### Tips - When to use PNG: Line art, text and diagrams stay perfectly crisp in PNG. Photos are better served by JPG or WebP. - Transparency: Pages with no background colour are exported with a transparent background when you enable the option. - File size: PNG files are larger than JPG. Keep DPI at 150 unless you need print quality. ### FAQ Q: PNG or JPG? A: PNG is lossless and supports transparency; JPG is much smaller for photos. Pick PNG for text and graphics. Q: Can I export at 600 DPI? A: The tool supports up to 300 DPI, which is already print quality. Higher values produce very large images that strain browser memory. Q: Are my files secure while I convert PDF to PNG? A: Yes. Everything happens inside your browser using JavaScript and WebAssembly. Your file is never uploaded, and nothing is stored on a server. Q: Do you keep a copy of my document? A: No. The file lives in your browser's memory only. When you close or refresh the tab it is gone. We cannot see it, and neither can anyone else. ## Text to PDF URL: https://docmint.io/text-to-pdf Category: Convert & Export Paste plain text or Markdown, pick a font and page size, and download a neatly typeset PDF. Headings, lists, bold and italics are supported. Accepts: pasted text or .txt/.md ### How to use 1. Enter your text: Paste or type in the editor, or drop a .txt or .md file. Markdown headings (#), lists (-), **bold** and *italic* are rendered. 2. Choose the style: Pick serif, sans or monospace, font size, page size and margins. A live preview updates as you type. 3. Create and download: Click Create PDF. Text is embedded as real, selectable text. ### Tips - Code: Use the monospace font and fenced code blocks (```) to document scripts or logs. - Long documents: Pages break automatically. Add a line with --- to force a page break. - Unicode: Latin, Greek and Cyrillic characters are supported with the built-in fonts. ### FAQ Q: Which Markdown features are supported? A: Headings, paragraphs, bullet and numbered lists, bold, italic, inline code, code blocks, block quotes and horizontal rules. Q: Can I add images? A: Not in this tool. Create the text PDF, then use Merge PDF to combine it with image pages. Q: Are my files secure while I convert text to PDF? A: Yes. Everything happens inside your browser using JavaScript and WebAssembly. Your file is never uploaded, and nothing is stored on a server. Q: Do you keep a copy of my document? A: No. The file lives in your browser's memory only. When you close or refresh the tab it is gone. We cannot see it, and neither can anyone else. # Security & Protection ## Protect PDF URL: https://docmint.io/protect-pdf Category: Security & Protection Encrypt your PDF with a password and restrict printing, copying or editing. AES-256 encryption, applied entirely in your browser. Accepts: PDF Can process several files in one batch. ### How to use 1. Upload the PDF: Drop in the document you want to lock. 2. Set passwords and permissions: The open password is required to view the file. The optional owner password controls permissions such as printing, copying and editing. Tip: Use a passphrase of four or more random words. It is easier to remember and far harder to guess. 3. Encrypt and download: Click Protect PDF. The file is encrypted with AES-256 and downloaded immediately. ### Tips - Share the password separately: Send the PDF by email and the password by another channel such as a message or a call. - Permissions are advisory: Restrictions like 'no printing' are respected by well-behaved viewers but cannot stop a determined user. The open password is the real protection. - Don't lose it: There is no recovery. If you forget the open password the document cannot be opened by anyone, including us. ### FAQ Q: What encryption is used? A: AES-256 (PDF 2.0, revision 6), the strongest encryption in the PDF standard, supported by all modern readers. Q: What is the difference between the two passwords? A: The open (user) password is needed to view the file. The owner password unlocks the permission restrictions. If you set only an owner password, anyone can open the file but editing and printing are limited. Q: Can I protect several PDFs at once? A: Yes. Drop several files and the same settings are applied to each. You get a ZIP with all protected PDFs. Q: Are my files secure while I protect a PDF? A: Yes. Everything happens inside your browser using JavaScript and WebAssembly. Your file is never uploaded, and nothing is stored on a server. Q: Do you keep a copy of my document? A: No. The file lives in your browser's memory only. When you close or refresh the tab it is gone. We cannot see it, and neither can anyone else. ## Unlock PDF URL: https://docmint.io/unlock-pdf Category: Security & Protection Remove the password from a PDF you own so you can open it freely. Decryption happens entirely on your device. Accepts: PDF Can process several files in one batch. ### How to use 1. Upload the locked PDF: Drop the file in. We detect whether it is encrypted. 2. Enter the password: Type the password you use to open the document. We cannot crack or guess passwords; you must know it. 3. Unlock and download: Click Unlock PDF. An unencrypted copy is produced with all content intact. ### Tips - Permissions-only locks: Some PDFs open without a password but block printing or copying. Enter the owner password, or leave it blank; many such files can be unlocked directly. - Keep it safe: An unlocked copy has no protection. Store it in a secure place or re-protect it with a new password. - Only your own files: Use this tool only on documents you have the right to unlock. ### FAQ Q: Can you remove a password I don't know? A: No. Decryption needs the correct password. This tool is for files you own and can already open. Q: Does unlocking change the content? A: No. Pages, fonts and images are preserved exactly. Only the encryption layer is removed. Q: Why does it say the password is wrong? A: PDF passwords are case-sensitive. Check Caps Lock and try the owner password if the user password fails. Q: Are my files secure while I unlock a PDF? A: Yes. Everything happens inside your browser using JavaScript and WebAssembly. Your file is never uploaded, and nothing is stored on a server. Q: Do you keep a copy of my document? A: No. The file lives in your browser's memory only. When you close or refresh the tab it is gone. We cannot see it, and neither can anyone else. ## Edit Metadata URL: https://docmint.io/edit-metadata Category: Security & Protection See what your PDF says about itself and change it. Edit the title, author, subject and keywords, or wipe every property with one click. Accepts: PDF Can process several files in one batch. ### How to use 1. Upload the PDF: The current title, author, subject, keywords, creator, producer and dates are shown immediately. 2. Edit the fields: Change any value, or click 'Remove all metadata' to blank every field, including creation and modification dates. Tip: Search engines and document libraries use the title field. Fill it in for better discoverability. 3. Save and download: Click Save Metadata. The document content is untouched. ### Tips - Privacy: PDFs exported from office software often contain the author's real name and the software version. Strip metadata before publishing. - Batch: Drop many files to apply the same author or to strip them all at once. - Keywords: Separate keywords with commas. They help document management systems index the file. ### FAQ Q: What metadata does a PDF contain? A: Typically a title, author, subject, keywords, the creating application, the producing library and creation/modification dates. Some files also embed XMP metadata. Q: Does removing metadata remove hidden content? A: It removes the document properties. It does not remove annotations, form data or text hidden under images. Use Flatten PDF for that. Q: Can I change the dates? A: Yes. Set a creation and modification date, or clear them. Q: Are my files secure while I edit metadata? A: Yes. Everything happens inside your browser using JavaScript and WebAssembly. Your file is never uploaded, and nothing is stored on a server. Q: Do you keep a copy of my document? A: No. The file lives in your browser's memory only. When you close or refresh the tab it is gone. We cannot see it, and neither can anyone else. ## Flatten PDF URL: https://docmint.io/flatten-pdf Category: Security & Protection Flatten a PDF so form fields, comments and signatures become fixed page content. Optionally rasterise pages into images for maximum tamper-resistance. Accepts: PDF Can process several files in one batch. ### How to use 1. Upload the PDF: Drop a filled form or an annotated document. 2. Pick the flatten mode: 'Flatten forms' bakes field values into the page and removes the editable widgets. 'Rasterise' converts each page to an image so no text, links or layers remain. Tip: Use 'Flatten forms' for completed applications; use 'Rasterise' when you must guarantee nothing can be changed or extracted. 3. Flatten and download: Click Flatten PDF. ### Tips - Before emailing forms: Flattened forms display the same in every viewer, including those that cannot render form fields. - Redaction caution: Flattening does not remove hidden text. Rasterise if you drew boxes over sensitive content. - Keep searchable: 'Flatten forms' keeps the text layer; 'Rasterise' does not. ### FAQ Q: What does flattening do? A: It merges interactive elements (form fields, annotations) into the static page content so they can no longer be edited. Q: Will links still work? A: In 'Flatten forms' mode, yes. In 'Rasterise' mode the page becomes an image, so links are removed. Q: Are my files secure while I flatten a PDF? A: Yes. Everything happens inside your browser using JavaScript and WebAssembly. Your file is never uploaded, and nothing is stored on a server. Q: Do you keep a copy of my document? A: No. The file lives in your browser's memory only. When you close or refresh the tab it is gone. We cannot see it, and neither can anyone else. # Sign & Annotate ## Sign PDF URL: https://docmint.io/sign-pdf Category: Sign & Annotate Draw your signature with a mouse or finger, type it in a script font, or upload an image. Then drag it onto the page and download the signed PDF. Accepts: PDF ### How to use 1. Upload the PDF: Drop the document you need to sign. Pages are shown so you can pick where the signature goes. 2. Create your signature: Draw it on the pad, type your name and choose a style, or upload a PNG of your real signature. You can also add a date or initials. Tip: Draw on a phone or tablet for the most natural result. 3. Place and download: Drag the signature to the right spot, resize it, add it to more pages if needed, then click Sign PDF. ### Tips - Transparent background: Drawn and typed signatures are transparent, so they sit cleanly over lines and text. - Multiple signatures: Add initials to every page and a full signature on the last page in one go. - Legal note: This adds a visual signature. For a certificate-based digital signature your organisation may require specialised software. ### FAQ Q: Is my signature stored? A: Only if you tick 'Remember on this device', which saves it in your browser's local storage. It is never sent anywhere. Q: Can I sign more than one page? A: Yes. Place the signature, then use 'Add to all pages' or pick the pages individually. Q: Is this a legally binding e-signature? A: In many jurisdictions a drawn signature on a PDF is accepted as an electronic signature. Check the requirements that apply to your document. Q: Are my files secure while I sign a PDF? A: Yes. Everything happens inside your browser using JavaScript and WebAssembly. Your file is never uploaded, and nothing is stored on a server. Q: Do you keep a copy of my document? A: No. The file lives in your browser's memory only. When you close or refresh the tab it is gone. We cannot see it, and neither can anyone else. # Inspect & Extract ## PDF to Text URL: https://docmint.io/pdf-to-text Category: Inspect & Extract Extract every line of text from a PDF. Preview it, copy it to the clipboard, or download it as TXT or Markdown. Accepts: PDF Can process several files in one batch. ### How to use 1. Upload the PDF: Drop a PDF that contains real text (not just a scan). 2. Review the text: The extracted text appears page by page. Toggle 'Keep layout' to preserve line breaks and spacing, or get flowing paragraphs. Tip: If the preview is empty, the PDF is a scanned image. Use OCR PDF instead. 3. Copy or download: Copy everything with one click, or download as .txt or .md. ### Tips - Tables: Columns are separated with tabs when 'Keep layout' is on, so they paste neatly into a spreadsheet. - Word count: The tool shows characters, words and pages so you can check document length at a glance. - Scans: Text extraction only works on PDFs with a text layer. Scanned PDFs need OCR. ### FAQ Q: Why is the output empty? A: The PDF probably contains images of text rather than text itself. Run it through OCR PDF to recognise the characters. Q: Does it keep the formatting? A: Plain text has no bold or fonts. 'Keep layout' preserves line breaks and spacing; Markdown export keeps page breaks as headings. Q: Can I extract from many PDFs at once? A: Yes. Drop several files and each gets its own text file inside a ZIP. Q: Are my files secure while I extract text? A: Yes. Everything happens inside your browser using JavaScript and WebAssembly. Your file is never uploaded, and nothing is stored on a server. Q: Do you keep a copy of my document? A: No. The file lives in your browser's memory only. When you close or refresh the tab it is gone. We cannot see it, and neither can anyone else. ## OCR PDF URL: https://docmint.io/ocr-pdf Category: Inspect & Extract Turn scanned PDFs and photos into searchable, copyable text. The recogniser runs in your browser; the images never leave your device. Accepts: PDF, JPG, PNG, WebP ### How to use 1. Upload a scan or photo: Drop a scanned PDF or an image. Pick the document language for the best accuracy. 2. Run recognition: Click Recognise Text. Progress is shown page by page. Larger scans take longer; nothing is uploaded. Tip: Rotate crooked pages first with Rotate PDF; OCR accuracy drops sharply on tilted text. 3. Download: Get a searchable PDF (your original pages with an invisible text layer) or a plain text file. ### Tips - Resolution: Scans at 300 DPI give the best results. Blurry phone photos reduce accuracy. - Languages: Choose the right language pack. Mixed-language documents work best with the dominant language selected. - Searchable PDF: The invisible text layer sits exactly over the scanned words, so highlighting and search work like a normal PDF. ### FAQ Q: How accurate is browser OCR? A: On clean 300 DPI scans of printed text, accuracy is typically above 95%. Handwriting and low-quality photos are much harder. Q: Which languages are supported? A: English, Spanish, French, German, Italian, Portuguese, Dutch, Arabic, Chinese, Japanese and more. Each language pack is downloaded once. Q: Is anything uploaded? A: No. The recognition engine (Tesseract compiled to WebAssembly) runs inside your browser. Only the language model is fetched from a CDN. Q: Are my files secure while I run OCR? A: Yes. Everything happens inside your browser using JavaScript and WebAssembly. Your file is never uploaded, and nothing is stored on a server. Q: Do you keep a copy of my document? A: No. The file lives in your browser's memory only. When you close or refresh the tab it is gone. We cannot see it, and neither can anyone else. ## Compare PDFs URL: https://docmint.io/compare-pdf Category: Inspect & Extract Upload two versions of a document and see exactly what changed. Differences are highlighted line by line, page by page. Accepts: PDF Takes several files as one input. ### How to use 1. Upload two PDFs: Drop the original and the revised version. Order does not matter; you can swap them. 2. Review the differences: Removed text is shown in red, added text in green. Jump between changes with the arrows or filter to changed pages only. Tip: Toggle 'Ignore whitespace' to hide changes that are only spacing or line wrapping. 3. Export a report: Download the comparison as a text or HTML report to share with colleagues. ### Tips - Scanned documents: Comparison needs text. Run OCR on scans first. - Contracts: Compare the signed version against the draft to catch last-minute edits. - Visual changes: Layout and image differences are not detected; this tool compares text. ### FAQ Q: Does it compare images or layout? A: No. It compares the extracted text of each page. Use PDF to JPG and compare images manually for visual checks. Q: Can I compare more than two files? A: Compare them in pairs. The tool works on exactly two documents at a time. Q: Are my files secure while I compare PDFs? A: Yes. Everything happens inside your browser using JavaScript and WebAssembly. Your file is never uploaded, and nothing is stored on a server. Q: Do you keep a copy of my document? A: No. The file lives in your browser's memory only. When you close or refresh the tab it is gone. We cannot see it, and neither can anyone else. ## Inspect PDF URL: https://docmint.io/pdf-info Category: Inspect & Extract Everything you want to know about a PDF: version, page count and sizes, metadata, encryption and permissions, embedded fonts, form fields and word count. Accepts: PDF ### How to use 1. Upload the PDF: Drop the file. Analysis starts immediately. 2. Read the report: See general properties, per-page sizes and orientation, metadata, security settings, the list of fonts and whether they are embedded, form fields and text statistics. 3. Export: Copy the report or download it as JSON for your records. ### Tips - Print shops: Check that every font is embedded before sending a file to print. - Mixed page sizes: The page table highlights pages whose size differs from the first page. - Hidden data: The metadata section reveals author names and software versions you may want to strip. ### FAQ Q: What is the PDF version? A: The PDF specification version the file declares (for example 1.4 or 1.7). Newer versions support more features such as transparency and AES-256 encryption. Q: Why does it say fonts are not embedded? A: The PDF references fonts expected to exist on the viewer's computer. Such files can look different on other machines. Q: Are my files secure while I inspect a PDF? A: Yes. Everything happens inside your browser using JavaScript and WebAssembly. Your file is never uploaded, and nothing is stored on a server. Q: Do you keep a copy of my document? A: No. The file lives in your browser's memory only. When you close or refresh the tab it is gone. We cannot see it, and neither can anyone else. # Image Tools ## Compress Image URL: https://docmint.io/compress-image Category: Image Tools Reduce image file size with quality and dimension controls. See the before and after size and preview, then download. Accepts: JPG, PNG, WebP Can process several files in one batch. ### How to use 1. Upload images: Drop one or many images. 2. Adjust quality: Move the quality slider and optionally set a maximum width or height. The estimated new size updates live. Tip: Quality 75–85 is visually indistinguishable from the original for most photos. 3. Compress and download: Click Compress. Several files are bundled in a ZIP. ### Tips - Websites: Limit width to 1600–2000 px for hero images and use WebP for the best balance of quality and size. - PNG: PNG is lossless, so the quality slider has little effect. Convert to WebP or JPG for big savings on photos. - Metadata: EXIF data (camera, GPS) is removed during compression, which also helps privacy. ### FAQ Q: Does compression remove EXIF/GPS data? A: Yes. The image is re-encoded from pixels, so camera and location metadata are not carried over. Q: Why doesn't my PNG shrink? A: PNG is lossless. Reduce the dimensions or convert to WebP for a meaningful reduction. Q: Are my files secure while I compress images? A: Yes. Everything happens inside your browser using JavaScript and WebAssembly. Your file is never uploaded, and nothing is stored on a server. Q: Do you keep a copy of my document? A: No. The file lives in your browser's memory only. When you close or refresh the tab it is gone. We cannot see it, and neither can anyone else. ## Convert Image URL: https://docmint.io/convert-image Category: Image Tools Convert images to JPG, PNG or WebP, in bulk. SVG and HEIC input are supported where your browser can decode them. Accepts: JPG, PNG, WebP Can process several files in one batch. ### How to use 1. Upload images: Drop any number of images. 2. Choose the output format: Pick JPG, PNG or WebP, set the quality and a background colour for transparent images converted to JPG. 3. Convert and download: Click Convert. Multiple results come in a ZIP. ### Tips - HEIC photos: Safari decodes HEIC natively. On other browsers, export from your phone as JPG first. - SVG: Vector SVGs are rasterised at the size you choose. Increase the scale for sharper output. - Transparency: Only PNG and WebP keep transparency. JPG fills it with your chosen background colour. ### FAQ Q: Which formats can I convert to? A: JPG, PNG and WebP, the formats every browser can encode. Q: Is quality lost? A: PNG output is lossless. JPG and WebP are lossy at the quality you choose; 90+ is near-lossless. Q: Are my files secure while I convert images? A: Yes. Everything happens inside your browser using JavaScript and WebAssembly. Your file is never uploaded, and nothing is stored on a server. Q: Do you keep a copy of my document? A: No. The file lives in your browser's memory only. When you close or refresh the tab it is gone. We cannot see it, and neither can anyone else. ## Resize Image URL: https://docmint.io/resize-image Category: Image Tools Resize one or many images to exact pixel dimensions, a percentage, or to fit inside a box. Aspect ratio is locked by default. Accepts: JPG, PNG, WebP Can process several files in one batch. ### How to use 1. Upload images: Drop one or many images. Current dimensions are listed. 2. Set the new size: Enter a width, height, or percentage. Keep the lock on to preserve proportions. Tip: Use 'Fit within' to bulk-resize mixed images to a maximum size without distortion. 3. Resize and download: Click Resize. ### Tips - Upscaling: Enlarging images cannot add detail. Keep enlargements under 200% for acceptable results. - Social sizes: Presets for common sizes (1080×1080, 1200×630, 1920×1080) are one click away. - Quality: High-quality downsampling is used, so shrunken photos stay sharp. ### FAQ Q: Will resizing distort my image? A: Not with the aspect ratio lock on. Turn it off only if you deliberately want to stretch. Q: Can I resize many images to the same size? A: Yes. Drop them all and choose 'Fit within' or exact dimensions. Q: Are my files secure while I resize images? A: Yes. Everything happens inside your browser using JavaScript and WebAssembly. Your file is never uploaded, and nothing is stored on a server. Q: Do you keep a copy of my document? A: No. The file lives in your browser's memory only. When you close or refresh the tab it is gone. We cannot see it, and neither can anyone else. # Guides ## How to Compress PDF — Complete Guide URL: https://docmint.io/blog/how-to-compress-pdf Published: 2026-03-12 Large PDFs are slow to send, slow to open and often rejected by email servers. The good news is that most PDFs carry far more data than they need to. This guide explains where the bulk comes from and how to remove it without ruining the document. ### Why PDFs get big Three things dominate PDF size: embedded images, embedded fonts and leftover objects from editing. Scanned documents are almost entirely images, which is why a ten-page scan can weigh 30MB while a hundred-page Word export is under 1MB. ### Lossless vs lossy compression Lossless compression rewrites the file structure, removes unused objects and packs data more efficiently. The page content is untouched, so quality is identical. It typically saves 5–30%. Lossy compression re-encodes images at a lower resolution or quality. On scans and photo-heavy documents it can cut size by 80–90%, at the cost of some sharpness. Text that was real text stays real text only if the tool keeps the vector layer, so check what your tool does. ### Step by step 1. Open the Compress PDF tool and drop your file. 2. Choose Lossless for documents you will print, or Balanced for anything that will be read on screen. 3. Compare the before/after size and download. 4. If the result is still too large, try Strong, then review a page to make sure the text is readable. ### Tips for different documents Scans: use Balanced or Strong; 110–150 DPI is plenty for reading. Presentations exported from slides: Balanced keeps photos looking good. Contracts and forms: Lossless, so signatures and small print stay crisp. ## How to Merge PDF Files URL: https://docmint.io/blog/how-to-merge-pdf-files Published: 2026-03-18 Merging PDFs is one of the most common document tasks: combining invoices for accounting, assembling a report from several chapters, or bundling scanned pages into one file. Here is how to do it well. ### Prepare your files Name files in the order you want them (01-cover.pdf, 02-intro.pdf). Put them in one folder so you can select them all in a single click. Check that each file opens correctly; a corrupted input will stop the merge. ### Merge in the browser 1. Open Merge PDF and drop all files at once. 2. Drag the list into the right order, or use Sort A–Z. 3. Click Merge and download the combined document. 4. Scroll through the result once to confirm the order. ### Common mistakes Forgetting to check the order is the number one issue. Another is merging encrypted files: unlock them first. Finally, merged files are the sum of their parts, so compress afterwards if size matters. ## Reduce PDF File Size: 8 Proven Methods Compared URL: https://docmint.io/blog/reduce-pdf-file-size-methods-compared Published: 2026-04-02 There is no single best way to shrink a PDF. The right method depends on what is inside the file and what you need to keep. Here are eight approaches ranked from least to most aggressive. ### The methods 1. Remove unused objects and metadata (lossless). 2. Enable object streams and better compression of the structure (lossless). 3. Downsample images to 150 DPI. 4. Re-encode images as JPEG at 75–85% quality. 5. Convert colour images to grayscale. 6. Subset or remove embedded fonts. 7. Flatten form fields and annotations. 8. Rasterise whole pages at a low resolution (last resort). ### Which to use Text documents: methods 1–2 only. Scans: 3–5 give the largest win. Design files with many fonts: 6. Filled forms: 7. If you only need a preview copy, 8 gives the smallest possible file. ### Privacy matters Many online compressors upload your file to a server. For confidential documents choose a tool that processes locally in your browser, so the file never leaves your device. ## Best Free PDF Tools: Privacy-Focused Comparison URL: https://docmint.io/blog/best-free-pdf-tools-privacy-comparison Published: 2026-04-15 Free PDF tools are everywhere, but they differ enormously in how they treat your data. This comparison focuses on one question: does your file leave your computer? ### Server-based tools Most popular sites upload your document, process it on their servers and let you download the result. They usually promise to delete files after an hour or two. That may be fine for a restaurant menu, but it is a real risk for contracts, medical records or anything under NDA. ### Browser-based tools Modern browsers can run PDF engines compiled to WebAssembly. Tools built this way never upload anything: the processing happens in the tab, and closing the tab wipes the data. The trade-off is that very heavy operations depend on your own device's speed. ### What to look for 1. A clear statement that files are processed locally. 2. No sign-up requirement for basic tasks. 3. Open, standard output formats with no watermarks. 4. A privacy policy that explains what analytics, if any, are collected. ### Our approach Docmint runs every tool in your browser. We do not have a server that can see your documents, which is the simplest privacy guarantee there is. ## How to Compress a PDF for Email URL: https://docmint.io/blog/compress-pdf-for-email Published: 2026-11-03 To get a PDF small enough to email, run it through a PDF compressor and aim for a file comfortably below your provider's limit, which for most services is somewhere around 20 to 25 MB. In Docmint's Compress PDF, start with the Balanced level, check the new size, and only move to Strong if you still need more room. If a single file still will not fit, split it into parts or send a link instead. ### How big can an email attachment be? Most large consumer email services cap attachments at roughly 20 to 25 MB per message, and that limit usually applies to all attachments combined, not to each file. Work and school mail servers are often stricter, sometimes 10 MB or less, and the recipient's server has its own limit, so a file your account accepts can still bounce on the other end. There is also a hidden cost: attachments are encoded for transit, which makes them roughly a third larger than the file on your disk. A 20 MB PDF can count as something closer to 27 MB once it is attached. That is why a file that looks safely under the limit still gets rejected. A practical rule: aim for about 15 MB or less when sending through a large consumer provider, and under 5 to 7 MB when you do not know what the recipient's system allows. ### Which compression level should you choose? Docmint offers three levels. Lossless rewrites the file structure and strips unused objects without touching page content, so nothing looks different. Balanced and Strong re-encode page images at a lower resolution, which is where the big savings come from. Match the level to what is inside the file. Scanned documents are mostly images, so they shrink the most, and Strong mode at 110 DPI is usually still readable on screen. PDFs exported from Word or another text editor are already efficient, so Lossless is the sensible choice and the saving will be modest. Presentations and reports with photos usually do well on Balanced. ### How to compress a PDF for email with Docmint The whole process runs in your browser, so the file is never uploaded and there is no upload size limit. 1. Open Compress PDF and drag your PDF into the drop zone, or click to browse. You can add several files to compress them in one batch. 2. Pick a compression level. Start with Balanced, or use Lossless for a text-only document. 3. Click Compress PDF and look at the original size, the new size and the percentage saved. 4. If the result is still above your target, go back and try Strong. If text looks soft after Strong, return to Balanced. 5. Download the compressed file and keep your original until you are happy with the result. ### Does compressing a PDF reduce quality? Lossless mode never changes page content. Balanced and Strong re-render pages as images at a lower resolution, which trades some sharpness for a much smaller file. For a document that will be read on screen, that trade is usually invisible. For something that will be printed or that has very small print, zoom in on the densest page before you send it. Because the stronger modes re-render pages as images, also check that anything the recipient relies on still works, such as searching or copying text. If it matters, use Lossless and reduce size another way. Re-encoded images cannot be restored, so always keep the source file. ### What if the PDF is still too big? Text-heavy PDFs may only shrink a little, because there is not much to remove. If compression alone does not get you under the limit, try these in order: 1. Remove pages the recipient does not need with Delete Pages, then compress again. 2. Convert color scans to grayscale with Grayscale PDF, which also produces a smaller file. 3. Split the document with Split PDF using "Every N pages" to make email-sized parts, and send them in separate messages. 4. Share a link instead. Many email services offer to place large files in their cloud storage and send a link, and any file-sharing service works the same way. ### Other ways to shrink a PDF If you still have the original Word, PowerPoint or design file, re-exporting it with smaller image settings often gives the cleanest result, because the text stays as text and only the pictures get smaller. On a Mac, Preview can export a PDF with a reduced file size filter, which works for quick jobs but can be aggressive with images. Desktop PDF editors also have optimization options with fine control over image resolution. Any of these is a fine choice if you already have it open; a browser tool is simply quicker when you just need the file under a limit. ### Tips before you hit send Sending several PDFs? Compress them in one batch, then combine them with Merge PDF so the recipient gets a single attachment. If the document is sensitive, chain the steps: you can ask the assistant on the Docmint home page to "compress it and add a password", which compresses the file and then encrypts it with AES-256. Send the password through a different channel, such as a text message or a call. Finally, give the file a clear name before attaching it. A compressed contract called "output (3).pdf" is easy to miss in someone's inbox. ## How to Delete Pages From a PDF Without Acrobat URL: https://docmint.io/blog/delete-pages-from-pdf-without-acrobat Published: 2026-11-03 You do not need Acrobat to remove pages from a PDF. Open the file in Docmint's Delete Pages, click the thumbnails you want gone or type a range such as 2, 5-7, 12, and click Delete Pages to download a copy without them. The remaining pages keep their original content, fonts and resolution, and the file never leaves your device. ### How to delete pages from a PDF with Docmint 1. Open Delete Pages and drop your PDF into the tool. Every page appears as a thumbnail. 2. Click the thumbnails you want to remove. Selected pages are highlighted in red. 3. Or type the pages into the box using commas and ranges, for example 2, 5-7, 12. 4. Check the button, which tells you how many pages will remain. 5. Click Delete Pages and download the new file. Links and bookmarks on the remaining pages are preserved. ### How do I remove blank pages from a scanned PDF? Duplex scanners scan both sides of every sheet, so single-sided originals come out with an empty page after each real one. If the blanks fall on every second page, use the "Select even" shortcut (or "Select odd", depending on where they land) to mark them all in one click, then glance through the grid to unselect any back side that actually has content. When blanks are scattered, select them by eye in the thumbnail grid. Look closely at pages that appear almost empty: a page with only a signature line, a short footnote or a faint stamp can look blank at thumbnail size. ### How do I remove a range of pages? Type the range into the page box instead of clicking each thumbnail. A hyphen covers a run of pages and commas separate individual pages or runs, so 1-3, 8, 10-12 removes seven pages in one go. This is the fastest way to drop an appendix, a block of terms and conditions, or the cover and back pages of a long report. Page numbers in the box refer to the position in the file, not to any number printed on the page. If a document starts with a cover and a table of contents, its printed "page 1" may be the third page of the PDF. Check the thumbnail before you trust a printed number. ### Checking the result Before you download, read the count on the button. If you expected 18 pages to remain and it says 16, something extra is selected. A PDF must keep at least one page, so you cannot delete everything. After you download, open the new file and scroll through it once, paying attention to the pages either side of each removed block. If you prefer a quick numeric check, Inspect PDF shows the page count and page sizes at a glance. If you made a mistake before downloading, click a selected page again to unselect it. After downloading, simply load your original file and start again, which is a good reason to keep the original until you are done. ### Does deleting pages make the file smaller? Usually, but not always in proportion. Pages in a PDF often share fonts and images, so removing a third of the pages does not necessarily remove a third of the size. If the goal is to get under an email limit, delete what you do not need first, then run the result through Compress PDF. You can pass the file straight from one tool to the next with "Continue with" instead of downloading and re-adding it. ### Other ways to delete PDF pages On a Mac, Preview handles this well: show the thumbnail sidebar, select the pages, press Delete, and save. On Windows, a common workaround is to print the PDF to a new PDF and choose only the pages you want in the print dialog. That works, but printing creates a fresh document, so links, bookmarks and form fields may not survive. Full desktop PDF editors, Acrobat included, have a page-delete command too. If you already have one of these at hand, it is a perfectly good option; a browser tool is useful when you are on a shared computer, a Chromebook, or a machine where you cannot install software. ### When to use a different tool If you want to keep the removed pages as their own file rather than throwing them away, use Split PDF to extract them. If you also need to reorder, rotate or insert blank pages, Organize Pages lets you delete and rearrange in the same view. And if the reason you are removing a page is that it is sideways, not unwanted, Rotate PDF fixes it without losing anything. ## How to Watermark a PDF With Text or a Logo URL: https://docmint.io/blog/how-to-watermark-a-pdf Published: 2026-11-03 To watermark a PDF, open it in Docmint's Watermark PDF, type your text (such as CONFIDENTIAL or DRAFT) or upload a logo, set the size, rotation, opacity and position against the live preview, and click Add Watermark. A 45 degree diagonal at 15 to 25% opacity is a good starting point: clearly visible, but the content underneath stays readable. ### Text or logo: which watermark should you use? A text watermark communicates status. CONFIDENTIAL, DRAFT, COPY, SAMPLE or NOT FOR DISTRIBUTION tells every reader how to treat the document, and it is the usual choice for internal drafts, review copies and anything sent before it is final. A logo watermark communicates ownership. It suits proposals, portfolios, price lists and design proofs, where you want the document to look branded and make reuse without credit awkward. Docmint accepts PNG, JPG and WebP images. A PNG with a transparent background gives the cleanest result because only the logo shows, not a white box around it. Keep the image under about 1 MB so the PDF stays small. A useful variation is a personalized text watermark, such as "Prepared for Alex Chen". If a copy turns up somewhere it should not, the name shows where it came from, which tends to discourage casual forwarding. ### How to add a watermark with Docmint 1. Open Watermark PDF and drop one or more PDFs. The first page appears as a live preview. 2. Type the watermark text, or upload a PNG, JPG or WebP logo. 3. Set the size, rotation, opacity and color, and choose where it sits on the page. 4. Turn on Tile if you want the watermark repeated across the page. 5. To stamp only some pages, enter a range such as 1, 3-5 in the Pages field. Leave it empty to stamp every page. 6. Click Add Watermark and download the result. ### What opacity and position work best? For a status stamp across the middle of the page, 15 to 25% opacity at a 45 degree angle is the classic look. Lower than that and it can disappear on a busy page or a poor printer; much higher and it starts to fight the text. Gray is a quiet choice, while red reads as a warning for CONFIDENTIAL. For a logo, a smaller mark in a corner at low opacity looks deliberate rather than intrusive. Tiling repeats the watermark across the whole page. It is visually heavier, but it is much harder to crop out than a single stamp, so use it for documents you are more worried about, such as early drafts sent outside your organization. ### Should the watermark go on top or behind the content? A watermark drawn on top is always visible, which is what you want when the point is that nobody can miss it. Choosing "Behind content" places it under the page's text and graphics, so the text stays crisp and readable. Check the preview either way: on some pages, solid content can cover a watermark that sits behind it, so if it disappears, switch back to on top and lower the opacity instead. ### Can a watermark be removed? Yes, with enough effort. A watermark becomes part of the page content, but someone with a PDF editor can cover it, edit it or, in some cases, delete it. The text under the watermark is also still there, so it can usually be selected and copied. Treat a watermark as a deterrent and a label, not as security. If you need more than that, combine it with other steps. Protect PDF encrypts the file with AES-256 so only people with the open password can view it, and can restrict printing, copying and editing, although those restrictions are honored by well-behaved viewers rather than enforced absolutely. Flatten PDF in Rasterise mode turns each page into an image, which bakes the watermark into the picture and makes it noticeably harder to separate from the content. Note that rasterising removes selectable text. ### Common mistakes to avoid 1. Sending the only copy: keep an unwatermarked original, because removing the stamp later is not a clean operation. 2. Opacity set too high: if the recipient has to squint around the word DRAFT, it is too strong. 3. A logo on a white box: use a PNG with transparency, not a JPG with a white background. 4. Stamping the cover only by accident: check the Pages field is empty if you meant every page. 5. Relying on the watermark alone for sensitive files: add a password as well. ### Other ways to watermark a PDF Desktop PDF editors have watermark features, and if you are producing the document in Word or a design app, you can add a watermark there before exporting, which is a fine approach for documents you regenerate often. A browser tool is quicker when the PDF already exists, and since Watermark PDF accepts several files at once, you can stamp a batch with identical settings. To stamp and lock a file in one go, describe the job to the Docmint home page assistant, for example "add a CONFIDENTIAL watermark and a password". ## How to Fix Sideways or Upside-Down Pages in a PDF URL: https://docmint.io/blog/fix-sideways-upside-down-pdf-pages Published: 2026-11-03 To fix sideways or upside-down pages, open the PDF in Docmint's Rotate PDF, hover each wrong page and turn it, or use the global buttons to rotate every page at once, then click Rotate PDF and download. Sideways pages need a 90 degree turn in one direction or the other, and upside-down pages need 180 degrees. Rotation is saved in the page itself, so it is lossless and sticks in every viewer. ### Why do PDF pages end up sideways or upside down? Scanners and phones are the usual cause. A sheet fed into a scanner the wrong way round comes out upside down. Landscape pages, such as spreadsheets or wide diagrams, sit sideways in an otherwise portrait scan. Phone scanning apps and cameras decide orientation from the motion sensor, and when the phone is held flat over a desk the sensor often guesses wrong, so some captures come out rotated 90 degrees. Mixed sources cause it too. When you merge a portrait report with a landscape chart exported from another program, each page keeps the orientation it came with, and some viewers display that differently than you expect. ### How to rotate PDF pages with Docmint 1. Open Rotate PDF and drop your file. Each page shows as a thumbnail with its current orientation. 2. To fix a single page, hover its thumbnail and use its rotate buttons. Other pages are left alone. 3. To fix every page, use the global buttons to rotate all pages 90, 180 or 270 degrees. 4. To fix a double-sided scan where only alternate pages are wrong, apply the rotation to even or odd pages only. 5. Click Rotate PDF and download the corrected file. ### Which way should I rotate? Look at the top of the text on the thumbnail. If the top of the page points left, rotate 90 degrees clockwise. If it points right, rotate 90 degrees counterclockwise, which is the same as 270 degrees clockwise. If the text is upside down, rotate 180 degrees. Landscape scans inside a portrait document usually need a 90 degree clockwise turn, but check the thumbnail before applying it to a group of pages, since scans are not always consistent. ### Should I rotate single pages or all of them? Rotate all pages when the whole document came out the same wrong way, for example a stack fed into the scanner upside down. One click fixes everything. Rotate single pages when a scan contains both portrait and landscape sheets. Turn the landscape pages so they read correctly and leave the rest. On a double-sided scan where every back side is upside down, the even or odd option fixes all of them in one step instead of page by page. ### Does rotating a PDF reduce quality? No. A PDF page has an orientation attribute, and rotating changes that attribute rather than redrawing the content. Nothing is re-encoded, text stays sharp and selectable, and the file size barely changes. You can rotate the same file several times without any loss. Because the rotation is stored in the PDF page itself, it shows the same way in Acrobat, Preview, Chrome and on phones. That is the key difference from the rotate button in many PDF viewers, which only turns your view of the page for the current session. If you rotated a document in a viewer, closed it and found it sideways again, that is why. ### Tips for scans and phone captures 1. Fix orientation before running OCR. Text recognition generally works best on upright pages, so rotate first, then use OCR PDF to make the scan searchable. 2. If you are building a PDF from phone photos with JPG to PDF, check the page thumbnails afterwards and rotate any that came in sideways. 3. Pages that are slightly crooked, rather than a quarter turn off, are not a rotation problem. Rotation works in 90 degree steps, so a skewed scan is best fixed by rescanning. 4. If the pages are in the wrong order as well as the wrong way round, Organize Pages lets you rotate and reorder in the same view. ### Other ways to rotate PDF pages macOS Preview can rotate pages and save the change: select the thumbnails, rotate, then save the file. Most desktop PDF editors have a rotate pages command as well, and both are good options if you already use them. Docmint is handy when you are on a computer without those tools, or when you have several files to fix, since Rotate PDF accepts a batch. Like every Docmint tool, it runs in your browser, so the document is never uploaded. ## How to Add Page Numbers to a PDF URL: https://docmint.io/blog/add-page-numbers-to-pdf Published: 2026-11-03 To add page numbers to a PDF, open it in Docmint's Add Page Numbers, pick a format and position, set the first page to number and the starting number, check the live preview, and click Add Numbers. To leave a cover page unnumbered, start on page 2 and number from 1. The numbers are added as real text, so they print sharply and can be searched. ### How to add page numbers with Docmint 1. Open Add Page Numbers and drop your PDF. The first page shows a live preview of where the number will go. 2. Choose a format, such as 1, Page 1, 1 / 12, a "Page 3 of 12" style, or Roman numerals (i, ii, iii or I, II, III). 3. Choose a position: bottom center, the outside corners, or the top of the page. 4. Set the font size and the margin from the edge of the page. 5. Set "Start on page" and the first number, for example start on page 2 and number from 1 to skip a cover. 6. Click Add Numbers and download the file. ### Which page number format should I use? A plain number is the most common choice and suits almost anything. "Page 3 of 12" or "3 / 12" is useful when pages may be printed and separated, such as contracts, forms and handouts, because a reader can tell at once whether a page is missing. Roman numerals are traditionally used for front matter: the preface, acknowledgments, table of contents and similar pages before the main text. Lowercase (i, ii, iii) is the usual style there; uppercase is less common but you can choose it. ### How do I skip the cover page? Set "Start on page" to 2 and the first number to 1. The cover stays clean and the next page is numbered 1. If your document has a cover and a table of contents, start on page 3, and so on. Alternatively, keep the conventional approach many style guides use, where the title page counts as page 1 but does not show a number: start on page 2 and number from 2. Whichever you choose, check the preview, and if you use a total such as "of 12", confirm the total matches what your readers will expect. ### Roman numerals for front matter and Arabic for the body Theses, dissertations and books often number front matter in Roman numerals and restart at 1 in Arabic numerals where chapter one begins. Each pass of the tool applies one format, so the clean way to get both is three steps: use Split PDF to separate the front matter from the body, number the front matter with i, ii, iii and the body with 1, 2, 3, then join the two parts again with Merge PDF. ### Where should page numbers go? Bottom center is the safest general choice and is common in reports and academic work. A top or bottom corner is typical in business documents. For booklets and anything printed double-sided, choose "Outside corners" so the numbers sit on the outer edge of each facing page, where they are easy to see when flipping through. Conventions vary, so check the rules that apply to you. Universities usually publish formatting requirements for theses, and courts often specify where page numbers go on filings. Those rules take priority over any general advice. Note also that Bates numbering, the prefixed sequential identifiers used to track documents in legal discovery, is a different job from ordinary page numbering. ### Troubleshooting page numbers 1. Numbers overlap text or a footer: increase the margin, or move the numbers to a different position. 2. Numbers too small after printing: raise the font size; what looks fine on screen can be tiny on paper. 3. Worried the font will look different on another computer: standard fonts such as Helvetica, Times and Courier are built into every PDF reader, so numbers render identically everywhere. 4. Pages already have printed numbers: adding more will create duplicates. Crop PDF can trim an old footer away, but check it does not remove other content. 5. Pages are in the wrong order: fix that first with Organize Pages, then add numbers. ### Other ways to add page numbers If you still have the source document, adding page numbers in Word, Google Docs or another editor before exporting to PDF works well, and those editors handle different numbering styles per section natively. Desktop PDF editors can also stamp headers and footers onto an existing PDF. Docmint is the quicker route when all you have is the finished PDF, or when the document was assembled from several sources. Add Page Numbers accepts several files at once, and because the numbers are drawn as vector text they stay sharp at any zoom. ## How to Crop PDF Margins and Remove Scanner Borders URL: https://docmint.io/blog/crop-pdf-margins-remove-scanner-borders Published: 2026-11-03 To crop PDF margins or remove scanner borders, open the file in Docmint's Crop PDF, drag the crop box on the preview or type the top, right, bottom and left margins, choose all pages or a range, and click Crop PDF. For plain white margins, turn on "Auto-trim whitespace" to find the content edges for you. The crop is applied as a page box, so text stays sharp and searchable. ### When does cropping a PDF help? Reading on a phone or small tablet is the most common reason. Slide handouts, academic papers and many reports have wide margins, and on a narrow screen every millimeter of white space shrinks the text. Trimming the margins lets the content fill the screen, so you zoom and scroll less. Scans are the second. Flatbed scanners and copiers often leave a gray or black edge where the lid did not cover the glass, and book scans pick up a dark gutter in the middle. Cropping removes these so the document looks clean on screen and wastes less toner when printed. It also helps when you need a figure, chart or table from a page on its own, for example to drop into a slide or send as a tight excerpt. ### How to crop a PDF with Docmint 1. Open Crop PDF and drop the file. The first page appears with a crop box. 2. Drag the edges of the box to the area you want to keep, or type the top, right, bottom and left margins in millimeters or percent. 3. For white margins, turn on "Auto-trim whitespace" to set the box tightly around the content. 4. Choose whether to apply the crop to all pages or enter a range in the Pages field. 5. Click Crop PDF and download the result. ### Auto-trim or manual crop? Auto-trim analyses the page image to find where the content starts and ends, then sets the crop box around it. It works best on clean digital documents with white margins, such as exported slides and reports. Use a manual crop when the margins are not plain white. A dark scanner border can look like content to an automatic tool, so drag the box inside the border yourself or type margins that clear it. Typed margins in percent are handy for consistency: 5% from every side gives the same proportional trim regardless of page size. ### Tips for cropping scans 1. Pages in a scan rarely sit in exactly the same spot. Look through several pages and leave a small safety margin so you do not clip text on a page that shifted. 2. For scanned books, use different crops for odd and even pages, since the gutter is on the right of one and the left of the other. 3. If only a few pages have a border, enter just those pages in the Pages field. 4. Fix rotation before cropping. A sideways page is much easier to crop once Rotate PDF has turned it upright. ### Is cropping a PDF permanent? Not entirely. Cropping sets the page's visible box rather than deleting anything, which is why it is lossless: nothing is re-rendered and the content remains vector. The flip side is that the trimmed area is hidden, not removed, and some advanced editors can restore it. That matters if you are cropping to hide something, such as a name in a margin note or an internal reference. In that case, crop first and then run the file through Flatten PDF in Rasterise mode, which turns each page into an image so the hidden area is gone for good. Rasterising also removes selectable text, so keep a cropped, unflattened copy for your own use. ### Crop or resize: what is the difference? Cropping changes what part of the page is visible. The page gets smaller and the content stays the same size, so the result is often a non-standard page size. Resizing changes the sheet the page sits on, for example from US Letter to A4, and scales the content to fit. Use Crop PDF when you want less white space or need to cut away a border. Use Resize Pages when you need a specific paper size for printing or submission. Sometimes you need both: crop away the scanner border, then use "Continue with" to send the result to Resize Pages so every page comes out as a clean A4 or Letter sheet. ### Other ways to crop a PDF macOS Preview can crop: draw a rectangular selection on the page and use the crop command, though applying identical crops across many pages takes some care. Desktop PDF editors offer crop tools with page ranges and precise margins. Both work well if you already have them. Docmint's advantage is the live preview with typed margins and auto-trim in a browser, with the file staying on your device. ## How to Change a PDF's Page Size to A4 or US Letter URL: https://docmint.io/blog/change-pdf-page-size-a4-letter Published: 2026-11-03 To change a PDF's page size to A4 or US Letter, open it in Docmint's Resize Pages, pick the target size, choose Fit to keep all the content visible, and click Resize PDF. Pages are scaled as vectors, so text stays sharp. This is the reliable fix when a document made in one region clips or prints with odd margins in another. ### Why A4 and Letter documents print badly abroad Most of the world uses A4 paper, 210 by 297 mm. The United States, Canada and a few other countries mainly use US Letter, 8.5 by 11 inches (about 216 by 279 mm). The sizes are close but not the same: Letter is slightly wider and noticeably shorter than A4. That small difference causes real problems. Print a Letter document on A4 paper at 100% and the sides can be clipped, while the bottom gets an extra band of white. Print an A4 document on Letter and the top or bottom may be cut off. Forms are the worst case, because a cut-off footer can lose a signature line or reference number. Online portals and print shops may also require one specific size and reject anything else. ### How to resize PDF pages with Docmint 1. Open Resize Pages and drop your PDF. The current page sizes are listed so you can see what you are starting from. 2. Pick a target size: A4, Letter, Legal, A3, A5, or enter a custom width and height in millimeters or inches. 3. Choose portrait or landscape, or turn on "Match orientation" so landscape pages get a landscape sheet. 4. Choose Fit, Fill or Stretch, and set how the content is aligned on the page. 5. Click Resize PDF and download the result. ### Fit, Fill or Stretch: which should you choose? Fit scales the content so everything stays visible on the new sheet. Because A4 and Letter have different proportions, Fit leaves a little extra white space on two sides. It never distorts the page and never cuts anything off, so it is the right choice for almost every document, especially forms and contracts. Fill scales the content until it covers the whole sheet. There is no extra white space, but a small strip along two edges goes beyond the page. Use it for designs and posters with generous margins, where losing a sliver of edge is harmless. Stretch makes the content match the new sheet exactly by changing its proportions. Text and images get slightly wider or taller than they should be. Between A4 and Letter the distortion is modest, but it is visible on logos and photos, so use Stretch only when exact coverage matters more than shape. ### Mixed page sizes in one PDF Documents assembled from several sources often mix A4 and Letter pages, which makes printing unpredictable and looks untidy in a viewer. One pass of Resize Pages makes every page the same size. If you are not sure what sizes a file contains, Inspect PDF lists page sizes along with page count and other details. Turn on "Match orientation" for documents with occasional landscape pages, such as wide tables. Without it, a landscape page would be shrunk onto a portrait sheet. ### Resize or crop: which do you need? Resizing changes the sheet and scales the content to suit it. Cropping changes how much of the existing page is visible without scaling anything. If the problem is the paper size, resize. If the problem is too much white space or a scanner border, crop. When you need both, crop first with Crop PDF, then resize, so the content is scaled up to fill the cleaner area rather than carrying the border along. ### Does resizing a PDF reduce quality? No. The content is scaled mathematically, so text and vector graphics remain sharp at any size. Scanned pages are images, and they are scaled the same way, so they look as good as they did before; resizing cannot add detail that a low-resolution scan never had. Going from A4 to Letter or back involves only a few percent of scaling, which readers will not notice. Large jumps, such as A3 to A5, shrink the text a lot, so check that small print is still legible. ### Other ways to fix a page size mismatch For a one-off print, your printer dialog's "Fit to page" or "Scale to fit" option is often enough, and it is built into every operating system. The catch is that it only affects that print job. When you are sending the file to someone else, uploading it to a portal or handing it to a print shop, changing the PDF itself is more dependable. If you created the document, setting the right paper size in the source app before exporting is the cleanest fix of all. After resizing, you can pass the file straight to Add Page Numbers or Compress PDF with "Continue with". ## Convert a Color PDF to Black and White for Printing URL: https://docmint.io/blog/convert-color-pdf-to-black-and-white-for-printing Published: 2026-11-03 To print a color PDF in black and white, convert the file first: open Grayscale PDF in Docmint, choose Grayscale for pages with photos or charts or Black & White for plain text, set the resolution to 150 DPI and click Convert. If you only need a single print and don't need to keep a gray copy, the grayscale option in your printer dialog is often enough. ### Grayscale or black and white: what is the difference? Grayscale keeps every shade between white and black. A blue chart line becomes a mid gray, a red heading becomes a darker gray, and photos still look like photos. It is the right choice for reports, slide decks, brochures and anything with images or colored charts. Black & White (sometimes called 1-bit or thresholded) turns every pixel into either pure black or pure white. Text comes out crisp and the files are the smallest you can get, but photos turn into blotchy shapes and light-colored elements such as pale table shading or yellow highlights can disappear completely. Use it for text documents, forms, contracts and receipts. If you are unsure, convert one page both ways and compare. A page range lets you test on a single page before you convert the whole document. ### Why convert the file instead of ticking grayscale when printing? Printer dialogs usually offer a grayscale or black-and-white setting, and for a one-off print at your own desk that is perfectly fine. Converting the file is better when the setting is out of your hands: sending a document to a print shop, a shared office printer, a colleague, or a print-on-demand service. A grayscale PDF prints the same on a color printer and a mono printer, so there are no surprises. It also helps with toner. Some color printers build dark grays and even black from a mix of colored toners, so a page that looks neutral on screen can still use colored toner. When the file itself contains only gray, there is no color information for the printer to act on. Finally, a converted file shows you exactly how the print will look. Charts that relied on color to tell lines apart may become hard to read in gray, and it is better to find that out on screen than on paper. ### How to convert a PDF to black and white with Docmint The conversion runs entirely in your browser, so the document is never uploaded. 1. Open the Grayscale PDF tool and drop your color PDF into it. 2. Choose the mode: Grayscale keeps shades, Black & White thresholds everything to pure black or white for the smallest files. 3. Set the output resolution. 150 DPI is plenty for office printing; use 200 to 300 DPI if the document has small print. 4. Optionally enter a page range to convert only some pages. The other pages are copied unchanged. 5. Click Convert, check a page or two, and download the result. ### Will the text still be selectable after converting? No. The tool re-renders each page as an image, which is how it guarantees there is no color left anywhere on the page. That means you can no longer select, copy or search the text in the converted pages. For printing this rarely matters. If you also need a searchable copy, run OCR PDF on the result to add an invisible text layer back, or simply keep your original color file for on-screen use and use the gray copy only for printing. ### Does converting to grayscale make the PDF smaller? Often, but not always. For scanned documents and image-heavy files, grayscale page images are typically around a third of the size of color ones, and Black & White goes smaller still. That makes a gray copy a good option when a color scan is too big to email. For a text-only PDF exported from a word processor, the opposite can happen. Those files store text as compact vector instructions, and turning each page into an image can make the file larger than the original. If file size is your main goal for that kind of document, Compress PDF in Lossless mode is the better tool. Resolution is the other lever. Every step up in DPI makes the page images larger, so pick the lowest setting that keeps your smallest text clear. ### Common mistakes to avoid 1. Using Black & White on photos or shaded tables. Light tints vanish and photos lose their detail. Switch to Grayscale for those pages. 2. Choosing a very low resolution for fine print. Footnotes and small table text can blur; go up to 200 or 300 DPI. 3. Deleting the color original. The conversion cannot be reversed, so keep the source file. 4. Forgetting about charts that use color as the only way to tell series apart. Check them in the gray version before printing a large batch. ### Other ways to print a PDF in black and white Most print dialogs, including those in macOS, Windows and common PDF readers, have a grayscale or black-and-white option. Desktop PDF editors can also convert colors with print production or preflight features. These are good choices when you print from your own machine. Docmint is useful when you need a gray file you can hand to someone else, when you want to reduce a color scan's size, or when you'd rather not install software. If you also want to fit more on each sheet, the N-up tool can follow the conversion, so you can save toner and paper in the same session. ## How to Combine Receipts Into One PDF for Expenses URL: https://docmint.io/blog/combine-receipts-and-invoices-into-one-pdf-for-expenses Published: 2026-11-03 To build one expense PDF, put all your receipts and invoices in one folder, rename them with the date first (for example 2026-10-14_hotel_212.50.pdf), drop them into Docmint's Merge PDF, sort by name and click Merge PDF. Then run the result through Compress PDF so it stays under your expense system's or email provider's size limit. ### Gather everything in one place first Expense paperwork arrives in every format: PDF invoices from email, booking confirmations from websites, and photos of paper receipts taken on your phone. Merge PDF accepts JPG, PNG and WebP images alongside PDFs, and each image becomes its own page, so you don't need to convert photos separately before combining. One exception: iPhones often save photos as HEIC, which most browsers cannot read. Convert those with the Convert Image tool (Safari can decode HEIC) or export them from your phone as JPG before you start. Move every file for the claim period into a single folder. That way you can select all of them in one go, and you can see at a glance whether something is missing before you build the PDF. ### Name files by date so they sort themselves Most finance teams and accountants want receipts in date order, matching the lines of the expense report. The simplest way to get there is a naming pattern that starts with the date in year-month-day form, then the vendor, then the amount: 2026-10-03_taxi_18.40.jpg, 2026-10-03_lunch_32.00.pdf, 2026-10-14_hotel_212.50.pdf. Because the year comes first, alphabetical order equals chronological order. In Merge PDF, the Sort A–Z button then puts everything in the right sequence in one click, even with dozens of files. The Sort by date button is different: it uses the date your device has recorded for each file, which is usually when it was downloaded, scanned or photographed, not the date printed on the receipt. It works well for photos you took at the moment of purchase, but an invoice downloaded a week later will land in the wrong place. Date-first file names avoid that problem. ### How to combine receipts with Docmint Everything is processed in your browser, which matters for receipts that show card digits, addresses and travel plans. 1. Open Merge PDF and select all the files in your expense folder (hold Ctrl on Windows or Cmd on Mac to pick several). 2. Click Sort A–Z to order them by your date-first file names, then drag any stragglers into place. 3. Click Merge PDF. The result is named after your first file, so rename it to something like 2026-10_expenses_your-name.pdf before downloading. 4. Scroll through the merged file once and check that every receipt is there and readable. ### How do I make the combined PDF small enough to upload? A merged file is roughly the sum of its parts, and phone photos are large. Ten receipt photos can easily add up to a file that an expense tool or mailbox refuses. Many email providers cap attachments at around 20 to 25 MB, and expense systems often set their own lower limits. Pass the merged file to Compress PDF using Continue with, so you don't have to download and re-upload it. Balanced is a good starting point; Strong works well when the bundle is mostly photos, and receipts generally stay readable on screen. Check the smallest print, such as tax lines and totals, before you submit. If you do this every month, a pipeline that runs Merge PDF and then Compress PDF saves the extra steps. You can also describe the job to the home page assistant, for example "merge these receipts and compress the result". ### Make the bundle easy for someone else to check Whoever approves your claim has to match each line to a receipt. Two small additions help. First, run Add Page Numbers on the bundle and write the page number next to each line of your expense report ("Hotel, 212.50, p. 7"). Second, if your receipts are photos or scans, OCR PDF can add a searchable text layer so the reviewer can search for a vendor name or amount instead of scrolling. If a receipt is printed on both sides, or a hotel folio runs to several pages, keep those pages together and in order. Organize Pages lets you fix the order after merging if something slipped. ### Mistakes that get expense reports sent back 1. Cut-off totals. Photograph the whole receipt, including the date, vendor and total, on a dark, flat surface. 2. Sideways or upside-down pages. Fix them with Rotate PDF or Organize Pages before you submit. 3. Duplicates. The same receipt photographed twice, or an invoice plus its email confirmation, can look like a double claim. Remove extras with Delete Pages. 4. Password-protected invoices. Some suppliers send locked PDFs; unlock them with Unlock PDF (you need the password) before merging. 5. Faded thermal paper. Photograph or scan thermal receipts soon after purchase, since the print fades over time. ## How to Split a PDF Into Pages or Extract a Page Range URL: https://docmint.io/blog/split-pdf-into-separate-pages-or-page-range Published: 2026-11-03 To split a PDF, open Docmint's Split PDF, drop in the file and choose how to cut it: extract a range such as 1-3, 5 into one new file, save each range as its own file, split every N pages, or save every page individually. Click Split PDF and you get either a single PDF or a ZIP containing all the parts. ### Which split mode do you need? Split PDF offers four ways to divide a document, and picking the right one saves cleanup afterwards. 1. Extract a custom range into one file: pull out specific pages, such as the signature pages of a contract or the one chapter a colleague needs, into a single new PDF. 2. Separate file per range: type several ranges and get one PDF for each. Ideal for cutting a report into chapters or a combined scan into separate documents. 3. Every N pages: cut the document into equal chunks, for example every 2 pages for a stack of two-page forms, or every 20 pages for a long scan. 4. Every page: one PDF per page, useful when each page is a separate item, such as individual certificates, payslips or invoices. ### How does page-range syntax work? Ranges use page numbers separated by commas, with a hyphen for a run of pages. The numbers count from the first page of the file, matching the numbers under the thumbnails, not the numbers printed on the pages themselves. A book whose first printed page "1" sits after a cover and table of contents will be offset, so check the thumbnails before you type. 1. 1-3 gives pages 1, 2 and 3. 2. 1-3, 5 gives pages 1, 2, 3 and 5. 3. 1, 4, 9-11 gives pages 1, 4, 9, 10 and 11, in that order. 4. Overlapping ranges are allowed, so 1-5, 3-8 is valid; in separate-file mode each range becomes its own PDF, so a shared page appears in both. ### How to split a PDF with Docmint The file is read and split in your browser; nothing is uploaded. 1. Open Split PDF and drop your file in. A thumbnail of every page appears. 2. Choose how to split: a custom range into one file, a separate file per range, every N pages, or every page. 3. Type your ranges (for example 1-3, 7, 10-12) or the number of pages per chunk. 4. Click Split PDF. A single result downloads directly; several results come bundled in one ZIP. 5. Open the ZIP (a double click works on every modern operating system) and spot-check the first and last file. ### How do I split a large PDF into email-sized parts? Every N pages is the quickest route. Divide the file size by the page count to get a rough size per page, then pick N so each part lands comfortably under your limit. A 60 MB, 120-page scan works out to about 0.5 MB per page, so chunks of 30 pages come to around 15 MB each. Pages vary, especially in scans with photos, so leave some margin. Often it is better to compress first. Compress PDF can shrink a scanned document considerably, and you may find the whole file fits in one email. If not, split the compressed version so you send fewer parts. ### Does splitting a PDF reduce quality? No. Split PDF copies pages as they are, with the same fonts, images and resolution, so the new files look identical to the matching pages of the original. Text stays selectable and searchable if it was before. The parts may add up to slightly more than the original, because each file needs its own copy of shared resources such as fonts. ### Other ways to split a PDF On a Mac, Preview can do simple extractions: show the thumbnail sidebar, select the pages you want and drag them to the desktop to create a new PDF. On Windows and in most browsers, printing to PDF with a page range produces a new file with just those pages, though printing can drop interactive parts such as links or form fields. Full desktop PDF editors offer splitting too. Those methods are fine for pulling out a page or two. Split PDF is quicker when you need many files at once, a split every N pages, or one file per page. ### Tips and troubleshooting 1. If you want to remove pages rather than keep them, Delete Pages is more direct. If you want to keep the removed pages too, splitting is the better choice. 2. Need the extracted pages in a different order? Run Organize Pages on the result. 3. If the file asks for a password, unlock it with Unlock PDF first (you need the password). 4. For chapters, use one range per chapter in separate-file mode so each chapter becomes its own neat file. ## How to Reorder, Rotate and Remove PDF Pages at Once URL: https://docmint.io/blog/reorder-rotate-remove-pdf-pages-in-one-pass Published: 2026-11-03 To fix a PDF's pages in one go, open Docmint's Organize Pages: every page appears as a thumbnail you can drag into place, and hovering a page lets you rotate, duplicate or delete it. Make all your changes on the board, then click Save PDF once to get a clean document at the original quality. ### What is the page board? Organize Pages shows your whole document as a grid of draggable thumbnails. Instead of running one tool to rotate, another to delete and a third to reorder, you make every change on the same board and see the result as you go. Nothing is written until you save, so you can rearrange freely while you work out the right order. On each page you can rotate, duplicate or delete. The + button inserts a blank page wherever you need one. Above the board, Reverse order flips the whole sequence, and the odd-first and even-first helpers regroup alternating pages, which is handy for cleaning up double-sided scans. ### How to reorder, rotate and delete pages with Docmint Everything happens in your browser, so the document never leaves your device. 1. Open Organize Pages and drop in your PDF. Every page appears as a draggable thumbnail. 2. Drag pages into the order you want. For fine adjustments, select a page and use the arrow keys to move it one step at a time. 3. Hover a page to rotate it, duplicate it or delete it. 4. Use the + button to insert a blank page where you need one, for example before a new chapter. 5. If the document was scanned back to front, click Reverse order. 6. Click Save PDF. The new order is written to a fresh document with the original quality. ### When should you use the page board instead of separate tools? Use Organize Pages when a document needs several kinds of fixes, or when you need to see pages side by side to decide on the order. Typical cases are a scan where a few pages came out sideways and out of sequence, a report where an appendix needs to move forward and two draft pages need to go, or a handout that needs a blank page so the next section starts on a new sheet when printed double-sided. Single-purpose tools are quicker for single-purpose jobs. Rotate PDF can turn every page at once and apply a rotation to only even or odd pages. Delete Pages lets you type a range such as 2, 5-7, 12 when you already know which pages to remove, which beats hunting through thumbnails in a 200-page file. Split PDF is the right choice when you want to keep pages in separate files rather than throw them away. Organize Pages works on one file at a time. To move pages between two PDFs, combine them with Merge PDF first, then organize the merged document. Continue with passes the result straight from one tool to the next. ### Does reorganizing pages reduce quality? No. Pages are copied, not re-rendered, so text stays sharp and selectable and images keep their resolution. Rotations change how a page is displayed, not its content. Duplicating a page doesn't double the file size either. Duplicates share the same underlying resources, so the file grows only slightly. That makes duplication a practical way to add a second copy of a form page or repeat a cover sheet between sections. ### Why add a blank page? Blank pages matter mostly for printing. In a document printed double-sided, you may want every chapter to start on a right-hand page, or a cover to have an empty back. Inserting a blank page in the right spot fixes that without editing the source document. Inserted blanks take the size of the page before them, so they print at the correct size even in documents that mix page sizes. ### Tips and common mistakes 1. Rotate before reordering in long scans. Upright thumbnails are much easier to read, which makes ordering faster. 2. Work from coarse to fine: drag whole sections into place first, then adjust single pages within each section with the arrow keys. 3. Check the page count in the result. Deleting a page by accident is easy on a crowded board. 4. Keep the original file until you have checked the saved copy. 5. If you plan to add page numbers, organize first and run Add Page Numbers last, so the numbers follow the final order. ### Other ways to rearrange PDF pages macOS Preview lets you drag thumbnails in the sidebar to reorder, rotate and delete pages, and full desktop PDF editors have page panels that do the same. Those are fine choices if you already have them open. Organize Pages gives you the same visual approach in any modern browser, without installing anything or uploading the file. ## How to Print Multiple PDF Pages per Sheet URL: https://docmint.io/blog/print-multiple-pdf-pages-per-sheet Published: 2026-11-03 To print several PDF pages on one sheet, open Docmint's N-up / Booklet tool, choose 2-up, 4-up, 6-up or 9-up, set the sheet size and orientation, and click Create Layout. You get a new PDF with the pages already arranged, which prints the same on any printer. For a folded booklet, choose Booklet instead. ### Which layout should you choose? The right layout depends on what is on the pages and how the printout will be used. 1. 2-up: two pages side by side on a landscape sheet. The classic layout for slide handouts and for reading drafts on paper, since text stays comfortably readable. 2. 4-up: four pages in a 2 by 2 grid. Good for slide decks with large type, reference copies and proofreading layouts, less so for dense text. 3. 6-up: six pages per sheet. Works for slides and thumbnails when you need an overview of a whole deck. 4. 9-up: nine pages per sheet. Best as a visual overview, for example to check the flow of a long presentation or a document's layout, rather than for reading. 5. Booklet: pages reordered so that a double-sided printout, folded in half, reads like a small book. ### Will the text still be readable? Each extra page per sheet shrinks the content. With standard paper, 2-up scales each page to roughly 65 to 70 percent of its original size, 4-up to about half, and 9-up to about a third. So 11-point body text becomes roughly 7- to 8-point at 2-up, about 5.5-point at 4-up and under 4-point at 9-up. Slides with 24-point text survive 4-up or 6-up easily; a dense contract does not. Two things help. First, trim wide margins with Crop PDF before laying the pages out, so more of each sheet is filled with content rather than white space. Second, keep the gap between pages small. Docmint embeds each page as a vector, so text stays sharp at any size, but your printer and your eyes still set a lower limit. ### How to put multiple pages on one sheet with Docmint The layout is built in your browser; the PDF is not uploaded. 1. Open N-up / Booklet and drop in your PDF. 2. Choose the layout: 2-up, 4-up, 6-up or 9-up, or Booklet for a folded booklet. 3. Pick the sheet size and orientation, and set the gap between pages. 2-up landscape is the usual choice for slide handouts. 4. Turn on Draw borders if you plan to cut the sheets apart, so each page has a thin frame to cut along. 5. Click Create Layout and download the result. Print it at 100 percent scale, not "fit to page", to keep the layout exactly as built. ### How do I print a booklet from a PDF? Choose Booklet and Docmint reorders and pairs the pages so that, after double-sided printing and folding, they read in sequence. Booklets need a page count that is a multiple of four, since each sheet carries four pages (two on each side); blank pages are added automatically to fill the gap. Print the booklet file double-sided with flip on short edge, fold the stack in half, and staple along the fold. Flipping on the long edge is the most common mistake, and it leaves every other page upside down. Thick stacks get harder to fold neatly, so for long documents consider printing several smaller booklets and binding them together. ### How much paper does it save? The math is simple. A 40-page document printed single-sided uses 40 sheets. At 2-up it takes 20, and 2-up printed double-sided takes 10. At 4-up double-sided, the same document fits on 5 sheets. For handouts printed for a group, that difference multiplies with every copy. If you also want to save toner, convert the file with Grayscale PDF first, then lay it out. Continue with passes the result from one tool to the other without downloading in between. ### Other ways: the pages-per-sheet setting in your print dialog Many print dialogs, on both Windows and macOS, have a pages-per-sheet or layout option, and some printer drivers can print booklets. For a quick one-off print from your own computer, that is often all you need. Creating the layout as a PDF is better when you send the file to a print shop or a colleague, when you want the same result on any printer, or when your driver lacks booklet support. You can also check the result on screen before printing a stack of copies. ## How to Convert PDF Pages to JPG for Slides and Chat URL: https://docmint.io/blog/convert-pdf-pages-to-jpg-for-slides-and-chat Published: 2026-11-03 To turn PDF pages into images for slides or chat, open Docmint's PDF to JPG, enter the pages you need, choose JPG at 150 DPI with quality around 85, and click Convert. One page downloads as a single image; several pages arrive in a ZIP, ready to drop into a presentation or a chat. ### What resolution should you use? DPI (dots per inch) decides how many pixels each page gets. Higher DPI means sharper images and larger files. For a US Letter page, the numbers work out like this (A4 is similar): 1. 72 to 96 DPI: about 612 by 792 pixels at 72 DPI. Fine for a small web preview or a thumbnail, too soft for reading text. 2. 150 DPI: about 1275 by 1650 pixels. Enough to fill a 1080-pixel-tall slide and sharp on most screens. The best default for slides and chat. 3. 300 DPI: about 2550 by 3300 pixels. Print quality. Use it when someone will print the image or zoom into fine detail. ### JPG, PNG or WebP? JPG is the safe choice for sharing: every slide program, chat app and phone handles it, and it keeps file sizes small for pages with photos. A quality setting around 85 is a good balance. PNG is lossless and handles transparency, so it suits diagrams, line art and pages with transparent areas (JPG always fills those with white). Expect larger files. WebP typically comes out 25 to 35 percent smaller than JPG at the same visual quality, and is a good pick when you know the destination supports it. ### How to convert PDF pages to JPG with Docmint Pages are rendered in your browser, so the PDF is never uploaded. 1. Open PDF to JPG and drop in your file. A thumbnail of each page appears. 2. Choose JPG as the format. 3. Set the resolution: 150 DPI for screens and slides, 300 DPI for print. 4. Set the quality slider; around 85 keeps images crisp and quick to send. 5. Optionally type a page range such as 1-3, 6 so you only get the pages you need. 6. Click Convert. One page downloads as an image; several pages download as a ZIP. ### How do I put a PDF page into a slide? Convert the page at 150 DPI and insert the JPG like any picture. A portrait page on a widescreen slide leaves empty space at the sides, so decide what the audience actually needs to see. If it is one table or chart, crop the page first with Crop PDF, then convert. The cropped area fills more of the slide and needs fewer pixels to look sharp. If you plan to zoom into a detail during the talk, or the slide will be projected on a large screen, convert at 200 or 300 DPI instead. Very high DPI only makes the presentation file heavier without visible benefit at normal viewing size. ### Why share a page as an image in chat? Chat apps show images inline, so people see the page immediately instead of downloading a PDF and opening it in another app. That works well for a single page, such as a timetable, a chart or a confirmation, especially for people reading on a phone. Many chat and messaging apps resize and recompress photos when you send them, which can blur small text. Sending a 150 DPI JPG at quality 85 gives the app less reason to shrink it. If text still comes out soft, crop to the part that matters, or send the image as a file or document attachment, which many apps deliver without recompression. Only share what is needed. Converting just the relevant pages keeps unrelated personal details on other pages out of the conversation. ### Troubleshooting 1. Text looks blurry: raise the DPI to 200 or 300, or crop the page before converting. 2. Files are too large: lower the DPI to 150, reduce quality slightly, or try WebP. 3. Transparent areas turned white: that is how JPG works. Choose PNG to keep transparency. 4. You got a ZIP: multi-page conversions are bundled so you download once. Double-click to open it. 5. Need lossless images for diagrams? Use PDF to PNG instead. ### Other ways to get an image of a PDF page For a single page, a screenshot is quick, though its resolution is limited to what is on your screen. macOS Preview can export the current page as a JPEG, and many PDF editors have export options. Docmint is handy when you need several pages at a consistent resolution, a specific page range, or a choice between JPG, PNG and WebP. ## How to Turn Phone Photos of Documents Into One PDF URL: https://docmint.io/blog/turn-phone-photos-of-documents-into-one-pdf Published: 2026-11-03 To turn phone photos of a document into one PDF, move the photos to your computer, drop them into Docmint's JPG to PDF, drag them into page order, choose A4 or Letter with a small margin, and click Create PDF. Each photo becomes one page; afterwards you can shrink the file with Compress PDF or make it searchable with OCR PDF. ### Take photos that make a good PDF The tool embeds your photos as they are, so the quality of the PDF is the quality of the photos. A few habits make a big difference: 1. Lay the page flat on a dark, plain surface so its edges stand out. 2. Use even daylight or a bright room, and avoid the shadow of your phone and hand falling across the page. 3. Hold the phone directly above the page, parallel to it, so lines stay straight rather than turning into a trapezoid. 4. Fill the frame with the page, and crop out the table and background in your phone's photo editor before transferring. 5. Photograph pages in order. Most phones name photos sequentially, which makes ordering later easier. ### Getting the photos onto your computer (and the HEIC catch) AirDrop, a USB cable, a cloud drive or emailing the photos to yourself all work. One thing to watch: iPhones often save photos as HEIC, a format most browsers cannot read. You can set the iPhone camera to its Most Compatible format to shoot JPG, convert existing HEIC files with Convert Image (Safari can decode HEIC), or export the photos as JPG from your phone. JPG to PDF accepts JPG, PNG, WebP, GIF (first frame) and BMP. ### How to make one PDF from photos with Docmint The PDF is built in your browser; the photos are not uploaded anywhere. 1. Open JPG to PDF and drop in all the photos for the document. 2. Drag them into the order you want them to appear as pages. 3. Choose the page layout: A4 or Letter with a small margin for documents, or Fit to image to keep each photo's exact dimensions. 4. Pick portrait or landscape, or auto-orientation so landscape shots get a landscape page. 5. Click Create PDF. Each image becomes one page. Scroll through the result to check the order. ### Which page size should you choose? For documents, choose the paper size the recipient uses: Letter in the US and Canada, A4 in most other countries. With a standard page size, the PDF prints at a sensible scale and every page has the same dimensions, which looks tidy when someone scrolls through it. A small margin keeps the edges of the page from being cut off by printers. Fit to image makes each page exactly the size of its photo. That suits photos of whiteboards, drawings or receipts of odd sizes, where you don't want white borders, but the pages will have different sizes and may print at unexpected scales. ### Portrait, landscape or auto? Phone photos of documents are usually portrait, so portrait pages fit most jobs. If some photos are of wide items, such as a spreadsheet printout or a two-page spread, auto-orientation gives those a landscape page instead of shrinking them onto a portrait one. If a page still comes out sideways because the photo itself was taken at an angle, fix it afterwards with Rotate PDF. ### The PDF is too big. What now? Because JPGs are embedded without re-encoding, a PDF of ten full-resolution phone photos can be tens of megabytes. You have two options. Before creating the PDF, run the photos through Compress Image, lowering quality slightly and limiting the maximum width; this also strips camera and location metadata. Or create the PDF first and pass it to Compress PDF with Continue with; Balanced or Strong work well on photo-based pages. ### How do I make the PDF searchable? A PDF made from photos contains pictures of text, not text. To search it, copy from it or let others find words in it, run OCR PDF on the result. Pick the document's language, and the recognizer (Tesseract, running locally in your browser) adds an invisible text layer on top of each page while keeping your original images. OCR accuracy depends on the photos: sharp, straight, well-lit pages work best, and tilted text reduces accuracy sharply, so rotate crooked pages first. If you plan to both compress and OCR, compress first and run OCR as the last step, so the text layer is added to the pages you will actually send. You can chain these steps in a pipeline, or describe the job to the home page assistant. ### Other ways to do it Phones have built-in document scanners: the Notes and Files apps on iPhone, and the Google Drive app on Android, can capture pages, crop them and save a PDF directly. If you are scanning from scratch with your phone in hand, those are a good option. JPG to PDF is useful when the photos already exist, when they came from someone else, or when you want control over page size, order and orientation on a bigger screen. ## PDF to PNG or JPG: Which Image Format Should You Choose? URL: https://docmint.io/blog/pdf-to-png-or-jpg-which-format Published: 2026-11-03 Choose PNG when your PDF pages are mostly text, line art, charts or diagrams, or when you need a transparent background. Choose JPG when the pages are mostly photographs or scans and a small file matters more than perfectly crisp edges. Docmint's PDF to PNG tool exports lossless pages at 72 to 300 DPI, and PDF to JPG covers JPG with a quality slider, both entirely in your browser. ### What is the real difference between PNG and JPG? PNG is lossless. Every pixel the converter draws from your PDF page is stored exactly, so what you see in the image is precisely what was rendered. That is why the PDF to PNG tool has no quality slider: there is nothing to trade away. JPG is lossy. It was designed for photographs, and it saves space by discarding detail the eye is unlikely to notice in natural images, such as tiny variations in color and texture. You control how much is discarded with a quality setting. The catch is that the same technique handles hard edges poorly, which is exactly what text and diagrams are made of. ### Which format keeps text sharper? PNG, every time. A page of black text on a white background is full of sharp transitions, and JPG compression tends to leave faint smudges and halos around letters, thin rules and table borders. At high quality settings the artifacts are hard to spot, but they become obvious when someone zooms in, or when the image is compressed again by a website or chat app. If the image will be read, pasted into documentation, or used to show a contract clause or a chart, PNG keeps it clean. If the page is a photo spread or a brochure cover, the difference is usually invisible and JPG's smaller size wins. ### Does transparency matter for PDF pages? Sometimes. Many PDF pages, especially logos, icons and diagrams exported from design software, have no background color at all. In Docmint's PDF to PNG tool, those pages are exported with a transparent background when you enable the option, so you can drop the image onto a colored slide or a dark website without a white box around it. JPG has no transparency. Any transparent area is filled with white. Keep in mind that transparency only appears where the page truly has no background: if the PDF paints a white rectangle behind the content, that white stays in the PNG too. ### Which gives a smaller file? JPG is usually much smaller, especially for photographic content. PNG files of text-only pages are often reasonable in size, but a PNG of a photo-heavy page can be several times larger than the equivalent JPG. Resolution matters even more than format. Doubling the DPI doubles the width and height of the image, which means roughly four times as many pixels. For screens, slides and most web use, 150 DPI is a good default. Use 300 DPI only when the image will be printed or needs fine detail when zoomed. ### Which format should you use for common jobs? A quick rule of thumb for the situations people run into most: 1. Slides, documentation and help articles: PNG at 150 DPI, so text and diagrams stay crisp. 2. A logo or diagram that needs to sit on a colored background: PNG with transparency enabled. 3. Social media posts or previews of a brochure or photo-heavy report: JPG at 150 DPI. 4. Scanned documents: JPG. A scan is already a photograph of paper, so PNG adds size without adding sharpness. 5. Printing a page as an image: 300 DPI, PNG for text and line art, JPG for photos. ### How to convert a PDF to PNG with Docmint The conversion runs locally in your browser with JavaScript and WebAssembly, so the PDF is never uploaded. 1. Open the PDF to PNG tool and drop your PDF into it. 2. Pick the pages you need. 3. Choose a resolution between 72 and 300 DPI. 150 DPI is a sensible default for screens. 4. Enable the transparency option if you want pages with no background color to export with a transparent background. 5. Click Convert. A single page downloads as one image; several pages are bundled in a ZIP. If you decide JPG is the better fit, the PDF to JPG tool works the same way and adds a format choice (JPG, PNG or WebP) and a quality slider. Around 85 is a good starting point for photos you plan to share online. ### Other ways to turn PDF pages into images For an occasional page, built-in tools are fine. On a Mac, Preview can export the current page as PNG or JPEG from the File menu. Full desktop PDF editors can export whole documents to images, and command-line tools such as pdftoppm from the Poppler project are handy if you convert files in scripts. A browser tool is mainly convenient when you want several pages at a chosen DPI without installing anything, on any operating system. ### Common mistakes to avoid 1. Exporting at 300 DPI for a web page. The image will be large and the site will scale it down anyway. 2. Choosing PNG for scans or photos and then wondering why the ZIP is so big. 3. Expecting a transparent background from a page that has a white background drawn into it. 4. Converting a page to an image when you actually need the words. Images are not editable text; PDF to Text or OCR PDF is the better tool for that. 5. Saving a JPG, editing it and saving it again repeatedly. Each JPG save loses a little more detail. Once you have your images, you can pass them to Convert Image to switch formats later, or to Compress Image if a PNG is heavier than a website allows. ## How to Turn Plain Text or Markdown Into a Clean PDF URL: https://docmint.io/blog/convert-text-or-markdown-to-pdf Published: 2026-11-03 To turn plain text or Markdown into a clean PDF, paste it into Docmint's Text to PDF tool (or drop a .txt or .md file), pick a serif, sans or monospace font, set the font size, page size and margins, and click Create PDF. Markdown headings, lists, bold and italics are rendered, and the text stays real, selectable text in the PDF. ### Why convert text to PDF at all? Plain text files are perfect for writing but awkward to share. They open in different editors with different fonts, long lines wrap unpredictably, and some recipients do not know what to do with a .md file. A PDF looks the same everywhere, prints predictably and can be attached to an email, uploaded to a portal or archived without worrying about how it will render. Typical cases include meeting notes, a README you want to hand to someone who does not use GitHub, a changelog for a client, a log excerpt for a support ticket, or a short letter you drafted in a notes app. ### What Markdown formatting is supported? Text to PDF understands the Markdown most people actually use: headings written with #, bullet lists with -, numbered lists, **bold**, *italic*, inline code, fenced code blocks and block quotes. Paragraphs separated by a blank line become separate paragraphs in the PDF. Plain text works too. If your file has no Markdown at all, it is simply typeset as paragraphs in the font and size you choose. The live preview updates as you type, so you can see exactly how your headings and lists will look before you create the file. ### What does not carry over? Setting expectations helps here. The tool does not add images, so Markdown image links will not become pictures in the PDF. If you need images, create the text PDF first and then use Merge PDF to combine it with image pages. Features specific to certain Markdown flavors, such as tables or task checkboxes, are not on the supported list, so check the preview before relying on them. The built-in fonts support Latin, Greek and Cyrillic characters. If your text uses other scripts, check the preview carefully before you share the result. ### How to convert text or Markdown to PDF with Docmint Everything runs in your browser, so private notes and internal documents never leave your device. 1. Open the Text to PDF tool. Paste or type your text into the editor, or drop a .txt or .md file. 2. Choose the font style: serif, sans or monospace. 3. Set the font size, page size and margins, and check the live preview as you go. 4. Click Create PDF and download the file. The text is embedded as real, selectable text. ### Which font and page settings should you choose? Serif fonts read comfortably in long printed documents such as letters and reports. Sans fonts look clean on screens and suit notes, summaries and handouts. Monospace is the right choice for anything where alignment matters: code, logs, command output or text laid out with spaces. Pick the page size your readers will print on, since the paper size people expect varies by country. Wider margins make a document feel calmer and leave room for handwritten notes; narrower margins fit more on each page, which helps with long logs. A slightly larger font size is kind to anyone reading on a phone. ### Tips for code, logs and long documents 1. Wrap code and log output in fenced code blocks (three backticks before and after) and use the monospace font so indentation and columns line up. 2. Pages break automatically. To start a new page at a specific point, such as before an appendix, add a line containing only ---. 3. Use real Markdown headings rather than lines in capital letters. They are styled consistently and make the structure obvious. 4. Leave a blank line between paragraphs and before lists. Missing blank lines are the most common reason a list runs into the paragraph above it. 5. Read the preview from top to bottom before downloading, especially if the text was pasted from a web page or email and may contain stray characters. ### Other ways to make a PDF from text Almost any text editor or word processor can print to PDF, and macOS and Windows both include a built-in PDF printer. That is a fine option for a quick one-off, although Markdown will usually come out as raw symbols unless your editor renders it first. Many code editors and Markdown apps can export to PDF with more layout control, and command-line tools such as Pandoc are excellent if you convert documents regularly and are comfortable with the terminal. Text to PDF is the quick middle ground: Markdown is rendered, there is nothing to install, and the content stays on your device. ### What to do with the PDF next If the document is going to several people, you can add page numbers with the Page Numbers tool, or send it straight to Protect PDF with Continue with if the notes are confidential. For a README that should look official, setting a clear title with Edit Metadata helps when the file is stored in a document library. ## How to Password-Protect a PDF and What Permissions Do URL: https://docmint.io/blog/password-protect-pdf-permissions-explained Published: 2026-11-03 To password-protect a PDF, set an open password: anyone who wants to view the file must type it, and the document is encrypted with AES-256. Docmint's Protect PDF tool does this in your browser, and also lets you add an optional owner password that restricts printing, copying and editing. The open password is the real protection; permission restrictions are only advisory. ### What is the difference between the open password and the owner password? A PDF can carry two passwords. The open password, sometimes called the user password, is required to view the file at all. Without it, the content cannot be decrypted and the PDF will not open. The owner password controls permissions. It tells PDF viewers which actions to allow, such as printing, copying text or editing, and it is needed to change those settings later. If you set only an owner password, anyone can open the file, but compliant viewers will limit printing and editing. ### What do PDF permissions really do? Permissions are instructions to the viewer, not locks on the content. Well-behaved PDF readers respect them and gray out the print or copy commands. But a file that opens without a password has to be readable by the viewer, so someone determined can use software that ignores the flags, take screenshots or simply retype the text. That makes permissions useful for discouraging casual changes and signaling intent, for example on a contract you want people to read but not edit. They are not a way to keep content secret. If the information must stay private, set an open password and only share it with the people who should read the document. ### How strong is AES-256 encryption in a PDF? Docmint uses AES-256 as defined in PDF 2.0 (revision 6), the strongest encryption in the PDF standard, and it is supported by all modern PDF readers. The algorithm itself is not the weak point. In practice, the security of a protected PDF depends almost entirely on the password: a short or predictable password can be guessed by software that tries millions of options, while a long, random one cannot realistically be guessed. ### How to choose a strong password A passphrase of four or more random words is easier to remember and far harder to guess than a short string of symbols. Avoid names, birthdays, company names and anything that appears in the document itself. If you use a password manager, let it generate and store the password for you. There is no recovery. If you forget the open password, nobody can open the document, including Docmint. Keep an unprotected original in a safe place, or store the password somewhere you trust before you send the file. ### How to password-protect a PDF with Docmint Encryption runs locally with JavaScript and WebAssembly, so your document is never uploaded. 1. Open the Protect PDF tool and drop in the PDF you want to lock. 2. Enter an open password. This is the password needed to view the file. 3. Optionally set an owner password and choose which permissions to restrict, such as printing, copying and editing. 4. Click Protect PDF. The file is encrypted with AES-256 and downloaded immediately. To protect several PDFs at once, drop them together. The same settings are applied to each, and you receive a ZIP with all the protected files. ### How should you share the password? Never send the password in the same email as the PDF. If that mailbox is compromised or the message is forwarded, both pieces travel together and the encryption achieves nothing. Send the file by email and the password through a different channel, such as a text message, a messaging app or a phone call. For recurring exchanges, such as monthly reports to the same client, agree on a passphrase in advance through a separate channel and change it from time to time. ### Other ways to add a password to a PDF Several tools you may already have can encrypt PDFs. Microsoft Word can encrypt a PDF when you save a document in that format, macOS Preview can add a password when exporting, and full desktop PDF editors offer detailed security settings. These are all reasonable choices. Docmint is useful when you want to protect an existing PDF on any device without installing software, or protect a batch of files with the same settings. ### Common mistakes to avoid 1. Protecting the file before you have finished editing it. Compress, merge, sign or flatten first, and add the password last. 2. Relying on permissions alone for confidential information. Without an open password, anyone can read the content. 3. Using the same short password for every document you send. 4. Deleting your only unprotected copy and then losing the password. If you often compress and protect together, describe the job to the assistant on Docmint's home page, for example "compress it and add a password", and it runs both steps as one pipeline. ## How to Remove a Password From a PDF You Own URL: https://docmint.io/blog/remove-password-from-pdf Published: 2026-11-03 If you know the password, open Docmint's Unlock PDF tool, drop in the file, type the password and click Unlock PDF. You get an unencrypted copy with every page, font and image intact. The tool cannot crack or guess passwords; it only removes protection from documents you can already open. ### Why remove a password from your own PDF? Banks, payroll providers, insurers and tax services often send statements protected with a password, sometimes based on your date of birth or part of an account number. That is sensible in transit, but once the file is on your own device it can get in the way. You have to type the password every time you open it, some upload portals reject encrypted PDFs, and many tools cannot merge, compress or annotate a file they cannot read. Removing the password from your own copy makes it easier to archive, combine with other documents, or hand to an accountant through a secure channel you already trust. ### Open password or permission-only lock? PDFs can be protected in two ways. An open password, also called a user password, stops the file from opening until the password is entered. A permission-only lock uses an owner password: the file opens normally, but printing, copying or editing is blocked. With an open password, you need that password to unlock the file. With a permission-only lock, enter the owner password if you have it, or leave the field blank; many such files can be unlocked directly, because the content itself is readable without a password. ### How to remove a PDF password with Docmint Decryption happens entirely on your device using JavaScript and WebAssembly. The file is never uploaded. 1. Open the Unlock PDF tool and drop in the locked PDF. Docmint detects whether it is encrypted. 2. Type the password you use to open the document. For a permission-only lock, enter the owner password or leave the field blank. 3. Click Unlock PDF and download the unencrypted copy. ### Can you remove a password you don't know? No. Decryption needs the correct password, and Docmint does not attempt to crack, guess or bypass it. That is a deliberate limit, not a missing feature. Only unlock documents you have the right to unlock: your own files, or files whose owner has given you the password and permission to work with them. Removing protection from someone else's document without permission may break an agreement or the law, depending on where you are and what the document is. If you have lost the password to a statement or report, the most reliable route is to ask the sender for a fresh copy or check their help pages for the password format they use. ### Why does it say the password is wrong? Most failed attempts come down to a few simple causes: 1. PDF passwords are case-sensitive. Check that Caps Lock is off. 2. If you pasted the password, make sure no space was copied before or after it. 3. Check the keyboard layout, especially if the password contains symbols or accented letters. 4. Try the owner password if the open password fails, or the other way around. 5. For bank or tax documents, re-read the email or letter that came with the file. The expected format, such as the order of a date, is often spelled out there. ### Other ways to remove a password If you can open the file, some built-in tools can also save an unprotected copy. On a Mac, Preview can export an opened PDF as a new PDF without encryption. In most browsers you can open the PDF, enter the password and use Print, then Save as PDF, although this route can drop links, bookmarks or form fields. Full desktop PDF editors let you change the security settings directly. Unlock PDF is simply a quick way to do it in the browser while keeping the content exactly as it was. ### Keep the unlocked copy safe An unlocked PDF has no protection at all, so treat it like any other sensitive file. Store it in an encrypted folder or a trusted account, and avoid leaving copies in your Downloads folder or on shared computers. If you only needed the password removed so you could merge or edit the document, you can send the result on with Continue with, for example to Merge PDF, and then re-protect the final file with a new password using Protect PDF. ## How to View and Remove PDF Metadata Before Sharing URL: https://docmint.io/blog/view-and-remove-pdf-metadata Published: 2026-11-03 To check what a PDF says about you, drop it into Docmint's Edit Metadata tool: the title, author, subject, keywords, creator, producer and dates appear immediately. Click "Remove all metadata" to blank every field, or edit the values you want to keep, then click Save Metadata. The page content is not changed. ### What metadata does a PDF contain? Most PDFs carry a small set of document properties alongside the pages: 1. Title, subject and keywords, which describe the document. 2. Author, often filled in automatically from the name on the computer or office account. 3. Creator, the application the document was made in, such as a word processor or design tool. 4. Producer, the library or software that wrote the PDF, often including a version number. 5. Creation and modification dates. Some files also embed a separate block of XMP metadata with similar information. None of this is visible on the page, which is exactly why it is easy to forget. ### Why check metadata before you share a file? PDFs exported from office software often contain the author's real name and the software version. That may be harmless, but it is not always what you want to publish. A report sent to a client might name a contractor who wrote it, a document from a template might still carry a title like an old project name, and dates can reveal when a document was really drafted. Software and version details are mostly harmless, but they are information you do not need to give away. Stripping metadata before you publish a PDF on a website, send it to a large mailing list or submit it anonymously is a simple habit that costs a few seconds. ### How to view and remove PDF metadata with Docmint Everything runs in your browser, so the document is never uploaded. 1. Open the Edit Metadata tool and drop in your PDF. The current title, author, subject, keywords, creator, producer and dates are shown immediately. 2. To strip everything, click "Remove all metadata". This blanks every field, including the creation and modification dates. 3. To edit instead, change any field: correct the author, write a clear title, add keywords separated by commas, or set or clear the dates. 4. Click Save Metadata and download the file. To clean many files at once, drop them together. You can strip them all or apply the same author to each in one pass. ### Should you remove the title, or fill it in? Removing everything is right for anonymous or sensitive files. For documents you publish on purpose, a good title is worth keeping. Search engines and document libraries use the title field, and many PDF viewers and browsers show it in the window or tab instead of the file name. The title also helps accessibility. Screen readers can announce the document title when the file opens, so a descriptive one such as "2026 Product Price List" is far more useful than a file name like final_v3_export. A sensible approach for public documents: strip personal details, then set the title, set the author to your organization, and add a few keywords. ### What does removing metadata not remove? Metadata removal clears the document properties only. It does not remove annotations or comments, form data, or text hidden under images or behind boxes drawn on the page. If you are trying to hide content, use Flatten PDF, and choose its rasterize mode if you covered sensitive text with shapes, since that turns each page into an image so the text underneath is gone. It also does not change file names, so rename the file itself if the name gives something away. ### Other ways to view PDF properties Most PDF readers show basic properties: desktop PDF editors usually have a Document Properties dialog, and Preview on a Mac shows them in its inspector. To fix the source, Microsoft Word's Document Inspector can remove personal information before you export. Docmint's Inspect PDF tool gives a fuller report that also covers encryption, permissions, fonts and form fields, which is a good way to double-check a file after you have cleaned it. ### Common mistakes to avoid 1. Cleaning metadata and then editing the file again in software that writes its own author and dates back in. Make metadata the last step, or check again afterward. 2. Assuming removing metadata redacts the document. It does not touch page content. 3. Leaving keywords from an earlier version of the document that no longer apply. 4. Forgetting that adding a password later with Protect PDF is a separate step; run it after you have saved the cleaned file. ## What Flattening a PDF Means and When to Do It URL: https://docmint.io/blog/what-is-flattening-a-pdf Published: 2026-11-03 Flattening a PDF merges interactive elements such as form fields and annotations into the page itself, so they look the same everywhere and can no longer be edited. Do it after you have filled in, commented on or signed a document and before you send it. Docmint's Flatten PDF tool offers two modes: "Flatten forms", which keeps text selectable, and "Rasterise", which turns each page into an image. ### What does flattening a PDF actually do? A PDF page can have two layers of content. The first is the static page: the text, lines and images that are drawn when the page is rendered. The second is an interactive layer on top: form fields you can type into, checkboxes, comments, highlights, stamps and other annotations. The interactive layer is useful while a document is being worked on, but it depends on the viewer. Some viewers display form fields differently, some hide comments, and anyone with an editor can change a filled-in value. Flattening takes what is currently shown in that layer and writes it into the static page, then removes the editable widgets. The result looks exactly as it did, but it is now ordinary page content. ### When should you flatten a PDF? Flattening makes sense whenever a document has moved from in progress to final: 1. After filling in a form, before you email or upload it, so the recipient sees your answers regardless of their viewer. 2. After signing, so the signature and any filled fields are fixed in place on the page. 3. Before archiving a completed application, contract or report. 4. When a recipient's viewer or an upload portal does not display form fields properly. 5. When a reviewed document should go out with its comments visible but no longer editable. ### Flatten forms or rasterize: what is the difference? The "Flatten forms" mode bakes field values into the page and removes the editable widgets. Everything else stays as it was: the text layer is kept, so the document remains searchable and you can still select and copy text, and links keep working. This is the right choice for completed applications and most everyday documents. The "Rasterise" mode converts each page into an image. No text, links or layers remain, so nothing can be changed or extracted from the page content. Use it when you must guarantee that a page cannot be edited or mined for text. The tradeoff is real: the text is no longer searchable or selectable, links are removed, and screen readers have no text to read. ### Does flattening remove hidden or covered content? Not in "Flatten forms" mode. A common mistake is drawing black boxes over sensitive text and assuming the text is gone. It is not: the words are still in the file underneath the shapes, and anyone can select or copy them. Flattening forms does not remove that hidden text. If you covered sensitive content with boxes, use "Rasterise". Because each page becomes a picture of what is visible, the covered text no longer exists in the file. Flattening also does not touch document properties such as the author name, so pair it with Edit Metadata if those matter. ### How to flatten a PDF with Docmint The file is processed in your browser and never uploaded. 1. Open the Flatten PDF tool and drop in your filled form or annotated document. 2. Pick the mode: "Flatten forms" to bake form field values into the page while keeping text, or "Rasterise" to turn each page into an image. 3. Click Flatten PDF and download the result. ### Other ways to flatten a PDF Printing a filled form to a PDF printer, from a browser or the operating system, often flattens it as a side effect, though results vary by viewer and some may drop fields or links. Full desktop PDF editors usually include a dedicated flatten or print-production option. These are fine if you already use them. Flatten PDF is handy when you want an explicit choice between keeping text and rasterizing, on any device, without installing anything. ### Tips and common mistakes 1. Keep the editable original. Flattening is meant to be final, so save the unflattened version in case you need to correct an answer. 2. Do not rasterize when you only need to lock form fields. You lose search, copy and links for no benefit. 3. If you rasterized a document and later need it searchable, OCR PDF can recognize the text again, but the result is never quite as clean as the original text layer. 4. Flatten before you protect. Add a password with Protect PDF as the last step, so the flattened file is the one that gets encrypted. A common sequence is Sign PDF, then Flatten PDF, then Protect PDF; you can pass each result straight to the next tool with Continue with. ## How to Sign a PDF With a Drawn, Typed or Uploaded Signature URL: https://docmint.io/blog/sign-pdf-online-drawn-typed-uploaded-signature Published: 2026-11-03 To sign a PDF online, open Docmint's Sign PDF tool, create your signature by drawing it, typing your name in a script style or uploading a PNG of your real signature, then drag it into place, resize it and click Sign PDF. This adds a visual signature to the page, processed entirely in your browser. It is not a certificate-based digital signature. ### Drawn, typed or uploaded: which signature should you use? A drawn signature is the closest to signing on paper. You draw it on the pad with a mouse, trackpad or finger. Drawing on a phone or tablet usually gives the most natural result, because a finger or stylus moves more like a pen than a mouse does. A typed signature turns your name into a script-style signature. It is quick, neat and consistent, which suits routine paperwork where a handwritten look is not essential. An uploaded signature uses an image of your real signature. Sign on plain white paper with a dark pen, photograph or scan it, crop it tightly and save it as a PNG. A transparent background sits best over signature lines; an image with a white background can cover part of the line or nearby text. Drawn and typed signatures are always transparent. ### How to sign a PDF with Docmint Your document and your signature never leave your device. 1. Open the Sign PDF tool and drop in the document you need to sign. The pages are shown so you can choose where the signature goes. 2. Create your signature: draw it on the pad, type your name and choose a style, or upload a PNG. You can also add a date or initials. 3. Drag the signature to the right spot and resize it so it fits the signature line. 4. If needed, add it to more pages with "Add to all pages" or by picking pages individually. 5. Click Sign PDF and download the signed document. ### How to place and resize a signature so it looks right Zoom in on the signature line and size the signature to match the surrounding text: roughly as tall as two lines of body text usually looks natural. A signature that is far too large looks pasted on, and one that is too small can be hard to recognize when printed. Many contracts ask for initials on every page and a full signature on the last one. You can do both in one go: place your initials and use "Add to all pages", then add the full signature and the date to the final page. ### Visual signature vs digital signature: what is the difference? A visual signature, which is what Docmint adds, is an image of your signature placed on the page. It shows that you signed, in the same way a signature on paper does. In many jurisdictions, a drawn or typed signature on a PDF is accepted as an electronic signature for everyday agreements, but requirements differ by country and by type of document, so check what applies to yours. A certificate-based digital signature is something different. It uses a digital certificate tied to your identity, usually issued by a trusted provider, to cryptographically seal the document. PDF readers can then verify who signed and show a warning if the file was changed after signing. Some organizations, regulated industries and official procedures require this kind of signature, and creating one needs specialized software or a signing service. If you are asked for a digital signature, a verified signature or a qualified electronic signature, a visual signature is not a substitute. ### Is my signature stored anywhere? Only if you choose. Ticking "Remember on this device" saves your signature in your browser's local storage so you can reuse it next time. It is never sent anywhere. On a shared or public computer, leave that box unticked. ### After signing: flatten or protect the PDF If the document also contains form fields you filled in, run it through Flatten PDF so the answers and signature are fixed into the page and display the same in every viewer. If the signed file is confidential, add an open password with Protect PDF before sending it, and share the password separately. You can pass the signed file straight to either tool with Continue with. ### Other ways to sign a PDF Preview on a Mac can capture a signature with the trackpad or camera and place it on a PDF, and free PDF readers commonly include a fill-and-sign feature. For contracts that need a full audit trail or certificate-based signatures, dedicated e-signature services are the right tool. Sign PDF is a good fit when you need to sign something quickly on any device without creating an account or uploading the document. ### Common mistakes to avoid 1. Signing an outdated version. Check that you have the final document before you sign. 2. Uploading a small, blurry photo of your signature. Use a sharp, tightly cropped image. 3. Leaving "Remember on this device" ticked on a computer other people use. 4. Assuming a visual signature meets a requirement for a certificate-based digital signature. ## How to Extract Text From a PDF (and When You Need OCR) URL: https://docmint.io/blog/how-to-extract-text-from-pdf Published: 2026-11-03 To extract text from a PDF, open it in a text extraction tool such as Docmint's PDF to Text, review the text page by page, then copy it to your clipboard or download it as a TXT or Markdown file. This works instantly on PDFs that contain a real text layer. If the result comes back empty, the PDF is a scanned image, and you need to run OCR first to turn the picture of the words into actual characters. ### How do you know if a PDF has real text? A PDF can hold text in two very different ways. Documents exported from a word processor, a spreadsheet or a web page usually contain a text layer: each character is stored as a character, with a font and a position on the page. Documents made with a scanner or a phone camera usually contain only a picture of each page. On screen they look the same, but only the first kind has text a program can read. The quickest test takes a few seconds. Open the PDF in any viewer and try to select a sentence with your cursor. If the words highlight one by one, there is a text layer. If you can only draw a box over the whole page, or searching finds nothing for a word you can clearly see, you are looking at an image. Some files are a mix, such as a typed cover letter followed by scanned attachments. Extraction then picks up the typed pages and returns little or nothing for the scanned ones. ### Why do scanned PDFs need OCR? OCR (optical character recognition) looks at the shapes in an image and works out which letters they represent. Text extraction does not do this; it only reads characters that are already stored in the file. A scanned contract, a photographed receipt or an old fax saved as a PDF will produce an empty or nearly empty result, whichever extraction tool you use. The fix is to run the file through OCR PDF first. It recognizes the text locally in your browser and can give you a plain text file directly, or a searchable PDF that you can then extract from like any other document. OCR is slower and never perfect, so if a digital original of the document exists, getting that is the better option. ### How to extract text from a PDF with Docmint PDF to Text runs entirely in your browser, so the file is never uploaded. 1. Open PDF to Text and drop in a PDF that contains real text, not just a scan. 2. Review the preview. The extracted text appears page by page, along with a count of characters, words and pages. 3. Turn on "Keep layout" if you want to preserve line breaks and spacing, or leave it off to get flowing paragraphs. 4. Copy everything to your clipboard with one click, or download the text as a .txt or .md file. 5. To process several PDFs at once, drop them all in. Each one gets its own text file, bundled in a ZIP. ### Should you keep the layout or get flowing paragraphs? Without layout, the text comes out as flowing paragraphs. This is what you want when you plan to paste the content into an email, a document, a translation tool or an AI assistant, because lines are not broken wherever the PDF happened to wrap them. With "Keep layout" on, line breaks and spacing are kept as they appear on the page. That suits anything where position carries meaning: invoices, forms, code listings, poetry and tables. Columns are separated with tabs, so a table copied this way pastes into a spreadsheet with each value in its own cell, often with little cleanup. Multi-column layouts, such as academic papers and newsletters, are where extraction most often surprises people. Text in a PDF is stored in the order it was written to the file, which is not always the order you read it. If paragraphs from two columns come out interleaved, try the other layout setting and compare. ### TXT or Markdown: which format should you download? Plain text (.txt) opens anywhere: Notepad, TextEdit, any code editor, any form that accepts pasted text. It is the safest choice when you are moving the content into another program. Markdown (.md) is still plain text, but it marks each page break as a heading, so you can tell where page 4 ends and page 5 begins. That helps with long reports you want to cite by page, with note-taking apps that read Markdown, and when you give a document to an AI tool in sections. Neither format keeps bold, italics or fonts. ### Other ways to get text out of a PDF For a single paragraph, selecting and copying in your PDF viewer is fine, and almost every viewer supports it, including the ones built into browsers and macOS Preview. With longer documents, copying from a viewer tends to bring stray line breaks and headers mixed into the body, and going page by page gets tedious. Some desktop PDF editors can export to text or Word, which is reasonable if you already own one. A dedicated extractor is faster when you want the whole document, a word count, or a batch of files handled at once. ### Troubleshooting common problems 1. Empty output: the PDF is a scan or a photo. Run it through OCR PDF, then extract. 2. Symbols or gibberish instead of letters: some PDFs use fonts whose characters are not mapped to real text. The page looks fine, but the stored text is meaningless. OCR is the workaround here too. 3. Hyphenated words split across lines: the original layout hyphenated them. A find and replace in your editor cleans this up. 4. Headers, footers and page numbers mixed into the text: they are part of each page, so they are extracted too. Delete them afterwards, or remove pages you do not need with Delete Pages before extracting. ## How to Make a Scanned PDF Searchable With OCR URL: https://docmint.io/blog/make-scanned-pdf-searchable-ocr Published: 2026-11-03 To make a scanned PDF searchable, run it through OCR (optical character recognition), which reads the words in the page images and adds an invisible text layer on top of them. In Docmint, open OCR PDF, pick the document's language, click Recognise Text and download the searchable PDF. Recognition runs in your browser, so the scan never leaves your device. ### What does OCR actually do to a PDF? A scanned PDF is a stack of photographs of pages. You can read it, but your computer cannot: search finds nothing, you cannot select a sentence, and screen readers have nothing to read aloud. OCR analyzes each page image, finds the lines of text and works out which characters they contain. Docmint's OCR uses Tesseract, an open-source recognition engine, compiled to WebAssembly so it runs inside the browser. The result can be saved in two forms, and the right one depends on what you want to do next. ### Searchable PDF or plain text: which output do you need? A searchable PDF keeps your original pages exactly as scanned and places an invisible text layer precisely over the words. The document looks the same, but now Ctrl+F (Cmd+F on a Mac) finds words, you can highlight and copy passages, and document management systems can index it. Choose this when the PDF itself is what you will keep, file or send: signed agreements, archived invoices, scanned books, records you will need to search later. Plain text output gives you just the recognized words in a .txt file. Choose this when you need the content rather than the document: pasting a scanned letter into an email, quoting an old report, or moving figures into a spreadsheet. If you later need text from the searchable PDF as well, PDF to Text can extract it. ### How to OCR a scanned PDF with Docmint 1. Open OCR PDF and drop in a scanned PDF or an image, such as a phone photo of a document. 2. Pick the document language. The first time you use a language, its model (a few MB) is downloaded and cached in your browser, so later runs start faster. 3. Click Recognise Text. Progress is shown page by page; larger scans take longer, and nothing is uploaded. 4. Download either a searchable PDF (your original pages with an invisible text layer) or a plain text file. ### Which languages can it read, including Arabic? Supported languages include English, Spanish, French, German, Italian, Portuguese, Dutch, Arabic, Chinese and Japanese, among others. Each language pack is downloaded once and then reused. Choosing the right language matters more than people expect. The recognizer uses each language's character set and typical word patterns to decide between similar shapes, so a French document read as English loses its accents, and an Arabic document read with a Latin-script model produces nonsense. Arabic is written right to left, with letters that change shape depending on their position in a word, which is exactly what the Arabic language pack is built to handle. For documents that mix languages, such as a contract in Arabic and English, select the dominant language. Text in that language will be recognized most accurately; check the passages in the other language carefully afterwards. ### What resolution should you scan at for OCR? 300 DPI is the sweet spot. At that resolution, ordinary body text has enough pixels per letter for clean recognition, and file sizes stay reasonable. On clean 300 DPI scans of printed text, browser OCR is typically above 95% accurate. Going much higher mostly makes files bigger and processing slower; going down to 150 DPI or less starts to blur small print and punctuation. If you scan with a phone, the equivalent advice is to shoot in good, even light, hold the phone parallel to the page and fill the frame with the document. Blurry or shadowed phone photos are one of the most common reasons for poor results. ### Tips for more accurate OCR 1. Straighten pages first. Accuracy drops sharply on tilted text, so fix sideways or upside-down pages with Rotate PDF before running OCR. 2. Start from the cleanest copy you have. A photocopy of a photocopy has lost detail that OCR cannot recover. 3. Expect printed text to work best. Handwriting and low-quality photos are much harder, so treat those results as a rough draft. 4. Proofread what matters. Names, numbers, dates and amounts are where a single misread character causes real problems, so check them against the page image. 5. Be patient on the first run. The language model has to download once; after that it is cached. ### Other ways to OCR a document Many scanners come with software that can create searchable PDFs at scan time, and if yours does, that is often the most convenient route. Desktop PDF editors and several phone scanning apps include OCR as well. These are perfectly good options. A browser tool is useful when the scan already exists, when you are on a computer without that software, or when the document is sensitive and you would rather not send it to a service that processes files on its own servers. Once your PDF is searchable, you can keep going: compress it for email with Compress PDF, or compare it against another version with Compare PDFs, which needs a text layer to work. ## How to Compare Two Versions of a PDF and See What Changed URL: https://docmint.io/blog/compare-two-pdf-versions-see-changes Published: 2026-11-03 To see what changed between two versions of a PDF, load both into a comparison tool that extracts the text and highlights the differences line by line. In Docmint's Compare PDFs, drop in the original and the revision: removed text shows in red and added text in green, page by page, and neither file is uploaded. ### When does comparing PDFs matter? The classic case is a contract. You send a draft, the other side sends back a "final" version, and you need to know whether anything changed beyond what was agreed. Reading two long documents side by side is slow and unreliable, because the eye slides over a changed number or a missing "not". A text comparison catches these mechanically. The same applies to policies, terms of service, lease renewals, tender documents, papers between drafts and any report that went through several rounds of review. When a revision arrives as a PDF, the tracked changes from the word processor are usually gone, and comparison is how you get that information back. ### How to compare two PDFs with Docmint 1. Open Compare PDFs and drop in two files: the original and the revised version. Order does not matter, and you can swap them. 2. Review the differences. Removed text is shown in red and added text in green, page by page. 3. Use the arrows to jump from one change to the next, or filter the view to changed pages only. 4. Turn on "Ignore whitespace changes" if the results are cluttered with differences that are only spacing or line wrapping. 5. Download the comparison as a text or HTML report to share with colleagues or keep with your records. ### How does a line-by-line text comparison work? The tool extracts the text from each page of both PDFs and lines it up, much like the diff tools programmers use to compare versions of code. Lines that exist only in the original are marked as removed, lines that exist only in the revision are marked as added, and an edited line appears as a removal next to an addition, so you can read the old and new wording together. Whitespace deserves a mention. If a document was re-exported with a slightly different font size or margin, lines can wrap at different words even though nothing was rewritten. Without the whitespace option, those rewrapped lines look like changes. With it on, you see only real edits to the words. ### What will a PDF text comparison not catch? Compare PDFs compares text. It does not detect changes to images, logos, signatures, charts, colors, fonts or bold and italic styling, or where elements sit on the page. A swapped photo, or a table moved to another spot with identical words, will not show up. For visual checks, convert both versions with PDF to JPG and compare the page images by eye, flicking between them at the same zoom level. For scanned documents, run both files through OCR PDF first, because the comparison needs a text layer. With OCR output, expect occasional false differences where a character was recognized differently in each scan. ### Can you compare more than two PDFs? The tool works on exactly two documents at a time. If you have a chain of versions, compare them in pairs: version 1 against version 2, then version 2 against version 3. To see the total change from first draft to final, also compare the first draft directly against the final version. ### Tips for reviewing contract revisions 1. Compare the version you are about to sign against the last draft you agreed to, not against the very first draft. That isolates the late changes. 2. Pay close attention to numbers, dates, defined terms and small words like "not", "may" and "shall", which change meaning without changing length much. 3. Export the HTML report and keep it with the signed file as a record of what you reviewed. 4. If a page shows no changes when you expected some, check that it actually contains text. A scanned signature page will look unchanged even when it is different. 5. A comparison shows you what changed, not whether it matters. For significant agreements, have someone qualified review the substance. ### Other ways to compare documents If you still have the original Word or Google Docs files, their built-in compare features are excellent and also show formatting changes. Some desktop PDF editors include a compare function too. A browser-based text comparison is useful when all you have is two PDFs, when you do not have that software at hand, or when the documents are confidential and you would rather they stay on your machine. ## How to Check a PDF's Page Size, Fonts and Security Settings URL: https://docmint.io/blog/check-pdf-page-size-fonts-security Published: 2026-11-03 To check a PDF's page size, fonts and security settings, open it in a PDF inspector that reads the file's internal properties. Docmint's Inspect PDF shows the version, page count, the size and orientation of every page, metadata, encryption and permissions, embedded fonts, form fields and word count in one report, without uploading the file. ### Why check a PDF before you print or submit it? Print shops, government portals, journal submission systems and court e-filing systems often have rules about the files they accept: a specific page size, all fonts embedded, no password, a maximum number of pages, sometimes a particular PDF version. A file that breaks a rule may be rejected, or worse, accepted and printed wrong. Checking takes a minute and can save a resubmission. It is also worth checking files you are about to send outside your organization. Metadata can contain an author's name, a company name or the software that produced the file, which you may not want to share. ### How to inspect a PDF with Docmint 1. Open Inspect PDF and drop in the file. Analysis starts immediately. 2. Read the report: general properties, per-page sizes and orientation, metadata, security settings, the list of fonts and whether each is embedded, form fields and text statistics. 3. Copy the report, or download it as JSON to keep with your records. ### What do page size and orientation tell you? Inside a PDF, page sizes are measured in points, with 72 points to the inch. US Letter is 612 × 792 points (8.5 × 11 inches) and A4 is about 595 × 842 points (210 × 297 mm). If a portal or printer expects Letter and your file is A4, or the reverse, pages may be scaled or clipped when printed. The page table highlights any page whose size differs from the first page. Mixed sizes are common when a PDF was assembled from several sources, such as a Letter-size form merged with an A4 attachment and a landscape spreadsheet. If every page must be the same size, Resize Pages can scale them all to A4, Letter or another size. Orientation shows which pages are landscape, which matters for double-sided printing and for portals that display page previews. ### Are the fonts embedded, and why does it matter? An embedded font travels inside the PDF, so the document looks identical on every computer and printer. A font that is not embedded is only referenced by name, and the viewer is expected to have it installed. If it does not, it substitutes another font and the layout can shift: lines rewrap, text overflows boxes, and special characters turn into blanks. Print shops almost always want every font embedded, and some archiving and submission standards require it. The inspector lists each font in the file and whether it is embedded. If some are not, the most reliable fix is to export the PDF again from the original application with font embedding turned on. ### What do the PDF security settings mean? The security section tells you whether the file is encrypted and what it permits. There are two kinds of protection. An open password means nobody can view the document without it. Permission restrictions let anyone open the file but limit actions such as printing, copying text or editing. Many upload portals reject encrypted PDFs, sometimes even ones that open without a password, because their systems cannot process restricted files. If the report shows encryption and you have the right to remove it, Unlock PDF can produce an unprotected copy. Going the other way, if you add a password with Protect PDF, Docmint uses AES-256 encryption. ### What else is in the report? 1. PDF version: the specification version the file declares, such as 1.4 or 1.7. Newer versions support more features, such as transparency and AES-256 encryption, and a few older systems ask for a particular version. 2. Page count: useful when a portal caps the number of pages, or to confirm that a merge or split produced what you expected. 3. Metadata: title, author, the software that created the file and its dates. This is where names and software versions you may want to remove show up; Edit Metadata can change or strip them. 4. Form fields: whether the PDF contains fillable fields. If a recipient needs the entered values fixed in place, Flatten PDF turns fields into static content. 5. Text statistics: word count and related figures. If a many-page document reports almost no words, it is probably made of scanned images and needs OCR to become searchable. ### Other ways to check PDF properties Most PDF viewers have a properties panel. In Adobe Acrobat Reader it is under File > Properties, which also lists fonts; in macOS Preview it is Tools > Show Inspector. These are fine for a quick look at one or two details. An inspector is handier when you want everything at once, need the size of every page rather than just the first, or want to save the results alongside the file. ## How to Compress Images for a Website or Upload Form URL: https://docmint.io/blog/compress-images-for-website-upload-form Published: 2026-11-03 To compress an image, re-save it at a lower quality setting and, if it is larger than it needs to be, reduce its dimensions. For most photos, a quality of 75 to 85 looks the same as the original while making the file much smaller. In Docmint's Compress Image, you drop in your images, move the quality slider, optionally set a maximum width or height, and check the estimated size before you download. ### Why are image files so big? Phone cameras produce photos that are often 4,000 pixels wide or more and several megabytes each, saved at high quality so they can be cropped and printed. A website rarely displays an image wider than about 2,000 pixels, and an upload form usually needs far less. The gap between what you have and what you need is the size you can remove. Two levers do almost all the work. Dimensions control how many pixels there are: halving the width and height leaves a quarter of the pixels. Quality controls how aggressively a lossy format such as JPG or WebP discards detail the eye is unlikely to notice. Use both. ### How to compress images with Docmint 1. Open Compress Image and drop in one image or many. 2. Move the quality slider. Start around 80 and adjust; the estimated new size updates live. 3. Optionally set a maximum width or height so oversized photos are scaled down. 4. Compare the before and after size and the preview. 5. Click Compress and download. Several files come bundled in a ZIP. ### What quality setting should you use? For photos, 75 to 85 is the range where the result is usually indistinguishable from the original on screen. Well below that, you start to see blockiness in smooth areas like sky and skin, and halos around sharp edges and text. Above 90, files grow quickly for very little visible gain. The right number depends on the picture. A busy photo with lots of texture hides compression well; a screenshot with text, a logo or a flat illustration shows artifacts sooner. Look at the preview closely, especially at edges and gradients, and settle on the lowest setting you are happy with. ### How should you compress images for a website? Images are often the heaviest part of a web page, so they are one of the best places to save. Limit width to roughly 1,600 to 2,000 pixels for full-width hero images, and much less for images shown in a column or as thumbnails. There is no benefit in sending a 4,000-pixel photo to a 700-pixel slot. Format matters as much as quality. WebP gives the best balance of quality and size for the web and is supported by all current major browsers, while JPG remains the universal choice for photos. PNG is lossless, so the quality slider has little effect on it, and a photo saved as PNG can be several times larger than the same photo as JPG or WebP. If your photos are PNGs, convert them with Convert Image first, or chain Convert Image and Compress Image in a Docmint pipeline. ### How do you get under an upload form's size limit? Job applications, government portals and support forms often cap uploads at a few hundred kilobytes or a couple of megabytes. Work in this order: set a maximum width first, because a form that shows your photo small does not need thousands of pixels, then lower the quality until the estimated size is under the limit with a little room to spare. If the form also asks for exact pixel dimensions, such as a 600 × 600 photo, use Resize Image to hit those numbers, then compress. Check which formats the form accepts; many take only JPG, so do not switch to WebP unless it is listed. ### Does compressing an image remove its metadata? Yes. Compress Image re-encodes the image from its pixels, so EXIF data such as the camera model and GPS location is not carried over. That trims the file a little further and is a sensible privacy step before posting photos publicly or sending them to people you do not know. ### Common mistakes 1. Compressing the same JPG again and again. Each lossy save loses a little more, so always start from the original. 2. Expecting a PNG to shrink with the quality slider. Reduce its dimensions or convert it to WebP or JPG instead. 3. Compressing a screenshot of text as hard as a photo. Text edges show artifacts first, so use a higher quality. 4. Throwing away the originals. Keep full-size copies in case you need to print or crop later. ### Other ways to compress images Image editors, including the export options in macOS Preview, let you pick a quality when saving, and website build tools can compress images automatically. Those are good choices for a regular workflow. A browser tool is quickest for a one-off batch, and because nothing is uploaded, it suits personal photos and scanned documents. ## JPG, PNG or WebP: Converting Images to the Right Format URL: https://docmint.io/blog/jpg-png-webp-convert-image-format Published: 2026-11-03 Use JPG for photos that need to open everywhere, PNG for screenshots, logos and anything with a transparent background, and WebP when you want the smallest files for a website. To convert, open Docmint's Convert Image, drop in your images, pick JPG, PNG or WebP and click Convert. It handles a whole batch at once, in your browser. ### What is the difference between JPG, PNG and WebP? JPG (or JPEG) is a lossy format designed for photographs. It discards fine detail the eye is unlikely to miss, which keeps photos small. It has no transparency, and at lower quality settings it handles sharp edges, like text and line art, poorly. PNG is lossless: every pixel is preserved exactly. That makes it ideal for screenshots, logos, diagrams and images containing text, and it supports transparency. The cost is size. A photograph saved as PNG is often several times larger than the same photo as JPG. WebP is a newer format that can be lossy or lossless and supports transparency. For photos it typically produces smaller files than JPG at similar visual quality, which is why it is popular on websites. ### Which image format is the most compatible? JPG is the safe default. Every device, operating system, email client, photo kiosk and upload form accepts it, and PNG is nearly as universal. WebP is supported by all current major browsers and most modern image apps, but some older software, some office and print workflows, and many upload forms that ask for "JPG or PNG" still do not accept it. A practical rule: if a person or a form will receive the file, send JPG for photos and PNG for graphics. If the file is going on your own website, WebP is usually the better choice. ### How to convert images with Docmint 1. Open Convert Image and drop in any number of images. JPG, PNG, WebP, GIF, BMP, SVG and HEIC files can be used as input, where your browser can decode them. 2. Choose the output format: JPG, PNG or WebP. 3. Set the quality for JPG or WebP output. 90 or higher is near-lossless. 4. If you are converting transparent images to JPG, choose the background color that fills the transparent areas. 5. Click Convert and download. Multiple results come in a ZIP. ### What happens to transparency when you convert? Only PNG and WebP keep transparency. JPG has no transparent pixels, so converting a logo with a transparent background to JPG fills those areas with the background color you choose. White suits documents and most web pages; if the image will sit on a colored slide or page, pick that color instead so the edges blend in. If a logo or icon needs to sit cleanly on backgrounds of different colors, keep it as PNG or WebP. ### Will converting reduce quality or change the file size? PNG output is lossless, so converting to PNG keeps every pixel of the image you started with. It cannot restore detail a JPG has already discarded, though, so converting a JPG to PNG usually makes the file bigger with no visible benefit. JPG and WebP output are lossy at the quality you choose. At 90 and above the result is near-lossless. Converting a PNG photo to JPG or WebP is one of the easiest ways to shrink an image a lot, and if you need it smaller still, Compress Image can lower the quality further and cap the dimensions. You can pass the result straight from one tool to the next with "Continue with". ### How do you convert iPhone HEIC photos and SVG files? iPhones save photos as HEIC by default. Safari decodes HEIC natively, so in Safari on a Mac or iPhone you can convert HEIC to JPG directly. Other browsers may not be able to read HEIC; in that case, export the photo from your phone as JPG first, or set the iPhone camera format to Most Compatible so it saves JPG from then on. SVG is a vector format with no fixed pixel size. When you convert an SVG, it is rasterized at the size you choose, so increase the scale for sharper output, especially for images that will be shown large or on high-density screens. ### Other ways to convert images On a Mac, Preview can export an open image as JPEG, PNG, HEIC and other formats, and on Windows, Paint can save as JPG or PNG. Both work well for a single file. A browser converter is quicker when you have a folder of images to change at once, or when you need WebP, which some built-in tools do not offer. ## How to Resize Photos to Exact Pixel Dimensions URL: https://docmint.io/blog/resize-photos-exact-pixel-dimensions Published: 2026-11-03 To resize a photo to exact pixel dimensions, open it in an image resizer, enter the width or height you need in pixels, and save the result. In Docmint's Resize Image, choose Exact pixels, type the dimension with the aspect ratio lock on so the photo does not stretch, and click Resize. If the required shape differs from your photo's shape, crop it to the right proportions first. ### Pixels, percentage or Fit within: which mode should you use? Exact pixels is for when a form or platform states the size, such as 600 × 600 or 1200 × 630. Keep the lock on to preserve proportions. Turn it off only if you deliberately want to stretch the image to a shape it does not have. Percentage scales the image by a proportion, such as 50% to halve both sides. It is useful when you simply want a smaller image and have no specific target. Fit within sets a maximum width and height, and each image is scaled to fit inside that box without distortion. This is the mode for batches of mixed photos, some portrait and some landscape, that all need to be no larger than, say, 1920 × 1080. ### How to resize an image with Docmint 1. Open Resize Image and drop in one or many images. Their current dimensions are listed. 2. Choose Exact pixels, Percentage or Fit within. 3. Enter the width, height or percentage. Keep the aspect ratio lock on to preserve proportions, or click a preset such as 1080 × 1080, 1200 × 630 or 1920 × 1080. 4. Click Resize and download the result. ### How do you keep the aspect ratio when the required size is a different shape? Aspect ratio is the relationship between width and height. A typical phone photo is 4:3 or 3:2, while a profile photo slot is often square. Resizing alone cannot turn a 4:3 photo into a square without stretching it. The clean approach is to crop first, then resize. Use the crop tool in your phone's photo app, in macOS Photos or Preview, or in the Windows Photos app to cut the picture to the right shape, for example a square around your face. Then resize the cropped image: with the lock on, a square crop set to 600 pixels wide becomes exactly 600 × 600. If you turn the lock off and enter both numbers on an uncropped photo, the image is squeezed or stretched. Faces look wrong very quickly, so avoid this for photos of people. ### What size should profile and social media photos be? Most platforms crop and scale uploads themselves, but giving them a sensible size up front avoids a blurry upscale or an awkward automatic crop. The presets cover common targets: 1080 × 1080 for square posts, 1200 × 630 for link preview images, and 1920 × 1080 for full HD banners and slides. Recommendations change over time, so check the platform's current guidance when it matters. ### How do you meet an application form's photo requirements? Visa applications, exam registrations, ID cards and job portals often specify both pixel dimensions and a maximum file size, such as a square photo between 600 and 1,200 pixels and no more than a few hundred kilobytes. Work in three steps: crop to the required shape, resize to the required pixels, then check the file size. If the file is still too large, run it through Compress Image and lower the quality a little. The dimensions stay the same and only the file size drops. You can chain the resize and the compression in a Docmint pipeline so both happen in one go. Do not confuse pixels with DPI. Some forms mention 300 DPI, but DPI is only a printing hint stored in the file; it does not change how many pixels the image has. When a form gives pixel dimensions, those are the numbers that count. ### Can you make a small image bigger? You can, but enlarging cannot add detail that was never captured. The software has to fill in new pixels between the existing ones, so upscaled photos look soft. Keep enlargements under about 200% for acceptable results, and if you need a large image, look for a higher-resolution original first. Shrinking is the opposite story: Resize Image uses high-quality downsampling, so photos you make smaller stay sharp. ### Troubleshooting 1. The photo looks stretched: the aspect ratio lock was off. Turn it on, or crop to the target shape before resizing. 2. The file is still too big for the form: reduce the dimensions further if the form allows it, or compress after resizing. 3. The result looks blurry: you probably enlarged a small image. Start again from the original, full-size photo. 4. Portrait and landscape photos need the same maximum size: use Fit within instead of exact pixels. ### Other ways to resize photos On a Mac, Preview's Adjust Size dialog resizes by pixels or percent and can scale proportionally. On Windows, the Photos app and Paint can resize too. They are fine for a single photo. A browser tool helps when you have a batch to bring to the same size, or want one-click presets for common dimensions.