Flatten PDF (Lock Form Fields)
Flatten a filled PDF form so the answers become part of the page and can't be edited — ready to email, print or archive.
How to use
- 1Add a filled-in PDF form.
- 2Press Flatten and download — the fields become normal page content.
Frequently asked questions
Why flatten a form?
So recipients see exactly what you entered and can't change it, and so it prints correctly in every viewer.
Can I undo flattening?
No — keep your original if you might need to edit the answers later.
Does it flatten annotations and comments?
This tool flattens form fields. Comments stay as they are.