ToolsBench

Flatten PDF

Bake form fields into the page so they can't be changed.

Processed on your device
Your files are processed in your browser and never uploaded.

About Flatten PDF

A filled-in form is only as final as its fields: anyone with a PDF viewer can click into a text box and quietly change the amount, the date, or the name. Flattening converts those interactive fields into ordinary, fixed page content — the values stay exactly where they are, but there's nothing left to click, tab into, or edit. It's the standard last step before archiving a completed form or sending it somewhere it shouldn't be altered.

How to use Flatten PDF

1
Add a PDF
Drop a form — filled-in or not — that has interactive fields.
2
Flatten
Every field is painted into the page and the interactive layer is removed.
3
Download
A fixed, uneditable copy — created without your file leaving the browser.

Frequently asked questions

Are my files uploaded anywhere?
No. Everything runs inside your browser — your file is read from your device, processed in memory, and never sent to a server.
Do the filled-in values survive?
Yes. Whatever each field displays is drawn permanently onto the page; only the ability to edit is removed.
What if my PDF has no form fields?
You'll get a clear message instead of a silently identical file — a PDF without fields is already flat.