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Flatten PDF

Flatten form fields, comments and annotations into the page so they can no longer be edited. Processed locally.

No uploads

How to use Flatten PDF

  1. 1Open Flatten PDF. It runs in your browser, no sign-up.
  2. 2Drop your file here or choose it. It stays on your device; nothing is uploaded.
  3. 3Adjust the options until the preview looks right.
  4. 4Download the result.

Questions

What does flattening do?

Form fields, comments, highlights and stamps are merged into the page itself, so nobody can change or remove them.

Which mode should I pick?

“Keep text” keeps the PDF small with selectable text. “Images” turns every page into a picture — nothing can be edited or copied, but the file is bigger.

Is my PDF uploaded?

No. Everything happens in your browser.

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