Flatten PDF
Flatten a PDF so form fields, comments and signatures become fixed page content. Optionally rasterise pages into images for maximum tamper-resistance.
Files are processed locally — nothing leaves your browser.
Client-side only· Instant· Free
Drop your files here, or click to browse
PDF files only • Maximum 200MB
Processed locally — your file never leaves your browser
More than one step?
In short
Flatten PDF on Docmint: Flatten a PDF so form fields, comments and signatures become fixed page content. Optionally rasterise pages into images for maximum tamper-resistance. It accepts PDF files, runs entirely in your browser with no upload, and is free with no account.
- Category
- Security & Protection
- Input
- Processing
- On your device, in the browser
- Price
- Free, no sign-up
- Runs entirely in the browser (no file upload)
- Free to use, no account required
- Processes several files at once
- Accepts PDF files
Last reviewed
Complete Your Workflow
Continue with these recommended tools for optimal results
- 1Protect PDFEncrypt the flattened file
- 2Sign PDFSign before flattening
- 3Compress PDFReduce the size of rasterised output
Looking for something else?
Browse all PDF toolsWhy Docmint
Built for privacy, speed, and simplicity
Unlike other PDF tools, Docmint processes everything in your browser. Your files never touch a server.
100% Private
Your files never leave your computer. Zero servers, zero privacy risk.
Instantly Fast
Browser-first workflows keep common tasks fast, with no upload queue to wait for.
Enterprise Ready
GDPR compliant, WCAG accessible, and built with professional-grade security standards.
How to flatten PDF
Follow these simple steps to get professional results in seconds
- 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.
Pro 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.
Why use Docmint to flatten PDF?
Experience the fastest, most private PDF tools online
100% Private
Your files never leave your computer. Zero servers, zero privacy risk.
Clear privacy handling
Browser-first • No retained files • No tracking
Instantly Fast
No upload, no queue. Processing starts the moment you drop a file.
Save hours of waiting time
Browser-based processing
Always Free
No subscriptions, no hidden costs. Premium PDF tools that respect your privacy and budget.
Save money on PDF tools
No credit card required
Pro Tips for Flatten PDF
Get the most out of your flatten PDF experience
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.
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Frequently Asked Questions — Flatten PDF
Everything you need to know about how to flatten PDF online
What does flattening do?
It merges interactive elements (form fields, annotations) into the static page content so they can no longer be edited.
Will links still work?
In 'Flatten forms' mode, yes. In 'Rasterise' mode the page becomes an image, so links are removed.
Are my files secure while I flatten a PDF?
Yes. Everything happens inside your browser using JavaScript and WebAssembly. Your file is never uploaded, and nothing is stored on a server.
Do you keep a copy of my document?
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.