Flatten PDF
Lock the form fields in your PDF so the filled values become fixed. Everything happens right on your device.
100% private. Your files are processed entirely in your browser and never uploaded.
How to flatten a PDF
- Add your PDF by dropping it in the box above or clicking to browse.
- Click Flatten PDF to lock the form fields.
- The flattened file downloads automatically.
FAQs about Flatten PDF
Are my files uploaded to flatten them?
No. The whole process runs inside your browser on your own device. Nothing is sent to a server, so your document stays private from the moment you add it.
What does flattening do?
It locks interactive form fields into the page so the filled values become fixed text. The form can no longer be edited, which keeps a completed document from being changed.
When should I flatten a PDF?
Flatten a form after you fill it in, before sharing or printing. It stops others from altering the answers and helps the file look the same in every PDF viewer.
What if my PDF has no form fields?
Then there is nothing to lock and the file is saved as is. Flattening only affects interactive fields, so a plain document comes back unchanged.