Flatten a PDF form

Lock filled-in form answers into the page, so they show in every app and can’t be edited.

Free, private, no uploads

Drop PDF files here

or paste with Ctrl+V

Your files stay on this device. Nothing is uploaded.

How it works

Why flatten a form?

Some apps don’t show form fields properly, and flattening stops anyone changing the answers.

Are my files uploaded?

No. Flatten PDF runs entirely in your browser, so your files never leave your device. It even works offline once the page has loaded.

Is it free?

Yes, completely: no limits, no watermark, no sign-up and no ads.