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Flatten PDF
Burn form fields, signatures and comments into the page so the document looks the same but can no longer be edited.
Why flatten a PDF?
A filled form is still a form: anyone who receives it can change what you typed. Flattening turns those answers into ordinary page content, so the document reads the same but cannot be altered.
Form field values become permanent page text
Highlights, sticky notes and stamps are burned in
Signature appearances are preserved exactly as placed
Optionally keep comments editable while locking the form
Page count, layout and fonts are untouched
Verified after writing — zero interactive elements remain
How to Flatten PDF
1
Upload your PDF
A filled form, a reviewed draft, or any document with annotations.
2
Choose how much to lock
Flatten everything, or lock just the form and leave review comments live.
3
Download the flat copy
Same document, same appearance, nothing left to edit.
100% Secure
AES-256 encryption
Super Fast
Results in seconds
Auto-Delete
Files removed in 2 hours
Frequently Asked Questions
Will the document still look the same?
Yes. Flattening draws each field and annotation exactly where it already appeared, then removes the interactive layer underneath. The page is visually identical.
Can I undo it?
No. That is the point — a flattened document cannot be edited back into a form. Keep your original if you may still need to change an answer.
Is the text still selectable and searchable?
Yes. Field values become real page text, so they can be copied, searched and read by screen readers just like the rest of the document.
What about password-protected files?
Unlock the document first. A file that still needs a password to open cannot be modified, so flattening it would fail.
Ready to flatten pdf?
Upload your file above and get started instantly. No account needed — 4 free tasks per month.