Flatten a PDF
Bake form fields, annotations and signatures into the page content so the document looks the same everywhere and cannot be changed.
Drop your PDF files here or click to browse
Stays on your device — nothing is uploaded
Select several files to process them together
How do I flatten a PDF for free?
Open PDFkitt's Flatten PDF tool (pdfkitt.com/flatten-pdf/): choose the PDF, pick what to flatten, flatten, then download. It is free, needs no account and adds no watermark, and it runs entirely in your browser — the file is never uploaded to a server.
- Price
- Free — no trial, no paid tier, no watermark
- Account
- Not needed
- File upload
- None — processed on your device, in the browser
- Input
- PDF files (several at once)
- Limits
- No daily quota and no file-count limit
- Works on
- Windows, macOS, Linux, iPhone, iPad and Android, in any modern browser
Updated · by the PDFkitt team
A completed form that must not be altered, a signed contract, a stamped approval: flattening turns interactive elements into ordinary page content. The form values, comments and stamps stay visible, but they are no longer fields or annotations that a recipient could change or delete.
Choose fields only (text stays selectable), everything, or full rasterization for the strongest guarantee. The document is processed on your device.
How to flatten a PDF
- Choose the PDF One or many.
- Pick what to flatten Fields, everything, or rasterize.
- Flatten On your device.
- Download The fixed document.
Why use PDFkitt to flatten PDF?
The file is processed inside your browser tab. Disconnect from the internet after the page loads and it still works.
No signup, no email, no daily quota, no page limit, no watermark. Use it as often as you like.
Phone, tablet or desktop, in Chrome, Safari, Edge and Firefox. Nothing to install.
Frequently asked questions
Can flattening be undone?
No — keep the original if you may need the interactive version.
Does it reduce file size?
Field flattening slightly; rasterizing can go either way.
Is my file uploaded?
No. Everything runs in your browser.