Flatten PDF
Lock form answers, comments and stamps into the page.
or drop it here · paste works too
Processed on this device. Nothing is uploaded.
How to use Flatten PDF
- 1Choose a PDF, or drop it on the page.
- 2Adjust the options if you need to.
- 3Press “Flatten”, then download the result.
About this tool
Bakes form fields and annotations into the page content so they print the same everywhere and can't be changed. Links can be kept.
Your files stay on this device. SpitePDF opens and processes them inside your browser. The counter in the top bar shows how many bytes this page has sent to any server: it should read 0 B. How this works
Related tools
- Edit PDFAdd text, images, shapes, highlights and drawings.
- Edit PDF TextChange existing words in a PDF.
- Sign PDFDraw, type or upload your signature and place it.
- Fill PDF FormFill in form fields, then save or flatten.
- Add WatermarkText or image watermark, centred, cornered or tiled.
- Add Page Numbers1, 2, 3 or “Page 1 of 10”, anywhere on the page.
- Headers & FootersRunning text at the top and bottom of every page.
- Bates NumberingLegal exhibit numbers across one or many files.
Questions
Is SpitePDF really free?
Yes. Every tool is free with no page limits, no sign-up and no watermark.
Are my files uploaded?
No. Files are opened and processed by your own browser. They never reach a server. The only things that use the network are optional: AI answers (if this site enables them) send the question plus relevant passages of text, never the file; P2P Share and the whiteboard connect two browsers directly.
Does it work offline?
Once a tool's engine has loaded, most tools keep working without a connection. OCR downloads its language data on first use and caches it.
Is there a file size limit?
No limit is imposed. Very large files are limited only by your device's memory; on phones, split or compress huge files first.