Flatten a PDF
Lock filled-in forms or turn the whole PDF into an image so it can't be modified.
Free · no sign-up required · works on your phone · unlimited
It is processed on your device, not on our servers: your files are not uploaded to the internet. With large files it may take a while and your device may run slower while it works; don't close this tab until it finishes.
Your PDF
Settings
Filled fields become fixed text; the rest of the PDF doesn't change and the text can still be copied.
Frequently asked questions
What does flattening mean?
Lock the content: filled-in fields are no longer editable and look the same in any reader.
Which option should I choose?
“Forms” keeps the text selectable. “Everything as an image” blocks any change, but the text can no longer be copied.
Is my PDF uploaded?
No. Everything is done on your device.
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