Flatten PDF
Free·No signup·Files never leave your device
How to flatten a PDF
Freeze what you filled in.
Add your PDF
The file opens locally — nothing is uploaded.
Flatten it
Every fillable field becomes permanent content.
Download
Get the flattened PDF, ready to print or send.
Why flatten with AmiPDF
What you see is what everyone gets.
Private by design
Processing happens entirely inside your browser. Nothing is uploaded, stored, or shared — ever.
No signup, no watermark
No account, no email, no limits. Your output comes out exactly as your files went in.
Nothing else changes
Page text, images, and layout stay untouched — flattening only freezes the form fields.
Works on any device
The same fast experience on Windows, Mac, Linux, Android, and iOS — no installation.
When to flatten a PDF
You filled a form for printing or submission, and the recipient saw empty boxes. Flattening bakes your values into the page itself, so any viewer shows them. It also stops accidental edits while a filled form circulates for review or archiving.
Flatten PDFs in any modern browser — nothing to install
AmiPDF runs in your browser — nothing to install, nothing to configure, nothing to update.
Windows
Chrome, Edge, Firefox
macOS
Safari, Chrome
Linux
Any modern browser
iOS
Safari on iPhone, iPad
Android
Chrome, Samsung Internet
Flatten PDF FAQ
What exactly does flattening do?
It turns fillable form fields — text boxes, checkboxes, radio buttons, dropdowns — into static page content. The values become part of the page, like printed text, and can no longer be edited in a form filler.
Does it flatten annotations or layers?
No. This tool flattens form fields only. Comments, drawings, and layer groups are left exactly as they are.
What if my PDF has no form fields?
You still get a download — the file is saved unchanged, and the result line will say no fillable fields were found.
Is my PDF uploaded anywhere?
No. Flattening runs entirely in your browser. Your file never leaves your device, and nothing is stored.
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