Flatten PDF
Lock in form entries by converting interactive fields to static page content — permanently.
Flatten PDF — FreeHow to Flatten PDF
- 1
Open the filled form
Drop your completed PDF form.
- 2
Flatten
Click Flatten PDF. All interactive fields are converted to static text drawn directly on the page.
- 3
Download the locked PDF
The resulting PDF looks identical to the filled form but is no longer editable.
Zero uploads
Files are processed entirely in your browser. Nothing is ever sent to a server.
No account needed
Open the editor, do your work, and download. No sign-up, no tracking.
Instant & offline
No waiting for server responses. Works offline after the first page load.
Frequently Asked Questions
When should I flatten a PDF?+
Flatten after filling a form before sharing it. This prevents recipients from altering the entered data and ensures consistent rendering across all PDF viewers.
Can flattening be reversed?+
No. Flattening is permanent. The original interactive fields are removed. Keep a backup of the original if you may need to edit it again.
Does flattening work on digitally signed PDFs?+
Flattening removes the digital signature fields. If signature validation is important, flatten only after all signatures are final.