A filled form is still a form: the values sit in editable fields and the next person can change them. Flattening paints the current appearance into the page and removes the fields, so what you send is what they see, everywhere.
This takes a second on the first visit, then it is cached.
Drop in the filled form.
Choose what to burn in.
Flatten and download.
Not as a form — that is the point. Keep the unflattened original if you may need to change the values.
No. Flatten PDF runs entirely inside your browser using WebAssembly and the Canvas API — the bytes of your document never travel to us. The only thing that reaches our servers is a counter incrementing by one, and whatever you deliberately choose to save to your library.
Not this one. Flatten PDF is part of Baker, at $10 a month — along with the other conversion, compression and security tools, and the AI ones. Signing, editing, watermarking, merging, splitting, rotating, organising and cropping are free, three documents a day up to ten pages each, with no account.