Optimize PDF
Flatten PDF
Burn interactive form fields into the page content so the values can no longer be edited, then save a clean static PDF.
Private by design No sign-up required
Drop files here
or select from your device. Files are processed locally and never uploaded.
How Flatten PDF works
- 1
Add your files by dragging them onto the drop zone or picking them from your device.
- 2
Adjust the options on the right until the result matches what you need.
- 3
Press “Flatten PDF”. Processing happens on your own machine, so speed depends only on your hardware.
- 4
Download the result individually or as a ZIP archive, then run the tool again with new files.
Good to know
- Accepted input: application/pdf
- Maximum file size: 200 MB per file
- Multiple files supported
- Nothing is stored, logged, or transmitted