Free optimise pdf tool
How do I flatten a PDF so nobody can edit the pages?
Flattening writes each page out as a single picture. The lines, the fields and the layers stop being separate objects, so the file looks the same but nobody can change what is on it by accident.
No watermark No account needed for the tools
Optimise PDF
Flatten a PDF
Turn the pages of a PDF into pictures so the content cannot be changed.
Private by default
Browser tools read and write the file on your device, so it is never uploaded.
01 / WHAT THIS TOOL DOES
The short version.
What goes in, what comes out and where the job stops.
- InputOne PDF from your device, up to 100 MB.
- OutputOne PDF with one picture on every page.
- LimitsA flattened page is a picture, so the words can no longer be copied, searched or edited. Pages are rendered at 120 DPI.
02 / HOW IT WORKS
Three steps. No setup.
Turn the pages of a PDF into pictures so the content cannot be changed.
- 01
Add your PDF
Choose the file from your device. It stays on your machine.
- 02
Nothing to type
Every page is written out as a single picture.
- 03
Download the result
The file looks the same, but the content can no longer be changed.
03 / QUESTIONS
Good to know.
What does flattening actually do?
It writes each page out as one picture. The lines, the fields and the layers stop being separate objects.
Does the text stay selectable?
No. A flattened page is a picture, so the words cannot be copied or searched.
Why would I flatten a file?
To stop a form or an invoice from being edited, or to make a layout hold together in every reader.
Can I flatten only some pages?
The flatten tool works on the whole document. Extract the pages you want first if you need a part of it.
04 / KEEP GOING