Flatten PDF
Turn fillable fields, comments, highlights and stamps into ordinary page content — so the document looks the same everywhere and can’t be edited.
- Processed on your device — never uploaded
- Free · Private · No sign-up
Drop your PDF here
or
Processed on your device — never uploaded
How it works
- 1
Open your PDF.
- 2
Choose what to flatten: forms, annotations or both.
- 3
Download the flattened PDF.
Frequently asked questions
Why flatten a PDF?+
Flattening prevents changes to filled forms and makes annotations print reliably in every viewer.
Can I undo it?+
Not in the new file — flattening is permanent there. Your original stays untouched.
Is it private?+
Yes. Flattening runs entirely in your browser.