Flatten PDF
Lock down a filled form or a marked-up PDF so the values and annotations become part of the page — no more accidental edits or cleared fields. Done in your browser, with nothing uploaded.
How to flatten pdf
Drop your PDF onto the box above (or click to choose it).
Fudobe opens it in Forms mode and detects any fields.
Tick “flatten” to merge the field values into the page.
Save the flattened PDF to your device — the answers are now locked in.
Most online PDF tools upload your file to their servers. Fudobe does it in your browser — your document never leaves your device.
You filled the whole form. Don’t let one stray click wipe it — flatten it.
flatten PDF — your questions
What does flattening a PDF do?+
It merges interactive layers — form fields and annotations — into the static page. The content stays visible but can no longer be edited or accidentally cleared, which is ideal before emailing a completed form.
Will the form still be fillable after flattening?+
No — that’s the point. Flattening makes the current values permanent. Keep an unflattened copy if you’ll need to change them later.
Is my file uploaded to flatten it?+
No. Flattening runs in your browser; the document never leaves your device.
Is it free?+
Yes — free, no account, no watermark, because it runs client-side.