What does flattening a PDF do?

It merges interactive layers — form fields, annotations, signatures — into the page content itself, so they display everywhere and can no longer be edited.

When should I flatten a PDF?

After filling a form or signing a document, before sending it out. Flattening stops recipients from changing your entries.

Will my filled-in values stay visible?

Yes. Everything you typed becomes normal page text, guaranteed to render identically in every viewer and printer.

Can flattening be reversed?

No — that's the point. Keep your original interactive copy if you might need to edit the fields again.

Is my document stored after flattening?

No. Flattening runs in memory and your file is purged straight after the download.

Flatten PDF

Lock form fields and annotations into the page permanently.

Drop your PDF here or click to browse

Up to 50 MB · processed in memory · deleted immediately

Frequently asked questions

What does flattening a PDF do?: It merges interactive layers — form fields, annotations, signatures — into the page content itself, so they display everywhere and can no longer be edited.
When should I flatten a PDF?: After filling a form or signing a document, before sending it out. Flattening stops recipients from changing your entries.
Will my filled-in values stay visible?: Yes. Everything you typed becomes normal page text, guaranteed to render identically in every viewer and printer.
Can flattening be reversed?: No — that's the point. Keep your original interactive copy if you might need to edit the fields again.
Is my document stored after flattening?: No. Flattening runs in memory and your file is purged straight after the download.

Fill PDF FormFill out interactive PDF forms and save the result.Sign PDFDraw, type or upload your signature and place it on any page.Protect PDFAdd password protection and encryption to a PDF.

Frequently asked questions

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