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Flatten PDF

Bake annotations and form fields into the PDF pages.

Drop your PDF here

Make fields and annotations part of the page content.

One PDF · Up to 50 MB · 100 pages
Protect & Unlock guide

How to use Flatten PDF

Create a non-interactive copy after completing forms or adding annotations that should remain fixed in place.

Three simple steps

  1. Choose the PDF containing fields or annotations.
  2. Flatten visible interactive elements into the page content.
  3. Download the flattened copy and keep the original for future editing.

Flattening behavior

  • Field appearances are generated when possible before flattening.
  • Visible annotations and form widgets become page content.
  • Flattening is difficult to reverse and may invalidate digital signatures.

Frequently asked questions

Can flattened form fields still be edited?

No. Their visible appearances become ordinary page content.

Should I keep the original PDF?

Yes. Keep it if you may need to change field values later.

Can flattening affect signatures?

Yes. Rewriting interactive content may invalidate certificate-backed signatures.