Flatten PDF

Flatten interactive form fields and annotations so they become a permanent part of the page.

100% in your browser · No uploads · Free limit 50 MB

Click to upload or drag and drop

PDF · max 50 MB/file

What this does

Flatten PDF bakes annotations, form fields, and watermarks into the page so they can't be removed or edited. Useful for finalizing a document before sharing.

When to use it

  • Locking a signed contract so the signature can't be deleted
  • Permanently embedding a "CONFIDENTIAL" watermark
  • Preparing a form for archiving — fields become read-only text

Frequently asked

Can a flattened PDF be unflattened?

No. Flattening is a one-way operation. Keep the original if you might need to edit it later.