Flatten PDF
Turn form fields into fixed page content.
Add a PDF with form fields and flatten it. The values become ordinary page content that looks identical but can no longer be edited or accidentally cleared.
How to use it
- Add the PDF you want to flatten.
- Check how many form fields were found.
- Press Flatten PDF and download the result.
Why use this tool
Completely private
Everything runs inside your browser. Your files and text are never sent to a server.
Free, with no limits
No sign-up, no watermarks and no cap on how many times you can use it.
Instant results
There is no upload or queue to wait for, so results appear as fast as your device can work.
Works on any device
Runs in any modern browser on phone, tablet or desktop. Nothing to install.
Frequently asked questions
- Why flatten a form?
- A filled form still holds editable fields, so anyone can change the values, and some viewers show empty boxes or lose the contents on save. Flattening fixes the values in place, which is what you want before emailing a completed form.
- Can it be undone?
- No. The fields are gone once flattened — that is the point. Keep the fillable original if you may need to change the answers later.
- Does it look different afterwards?
- It should look the same. The values are drawn onto the page where the fields were. Interactive highlighting disappears, since there is nothing left to interact with.
- What if my PDF has no form?
- You get a valid copy back with nothing changed. The tool says so up front rather than implying it did something.