Protect a PDF with a password
Open password with AES-256 encryption and permissions for printing, copying and modifying. You can also restrict permissions without setting a password.
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· Your file:
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Outgoing requests from this tab
You are offline and this still works: proof that nothing is uploaded.
Nothing is uploadedYour PDF never leaves your device. There is no server to receive it.
Nothing is storedClose the tab and no copy remains anywhere.
Nobody sees your passwordIt is used only in your browser to open the file. We never know it.
Drop your PDF hereor tap to choose a fileYou can also drop it anywhere on the page. Several PDFs at once are processed as a batch.
What do you want to do with this PDF?
Organize
Convert
Edit
Protect & optimize
How to do it
- Load the PDFAnd choose Protect.
- Type the password and choose permissionsRepeat the password to avoid typos. Untick what you do not want to allow.
- Protect and downloadThe PDF comes out encrypted. Without the password nobody can open it, not even us.
Why do it in your browser
When you protect a PDF on a traditional site, the password you choose travels to the server with the file. Here encryption happens in your browser: the key is never transmitted.
Frequently asked questions
Which encryption does it use?
256-bit AES, the strongest in the PDF standard.
Are permissions always honored?
Most PDF readers honor them, but not all. The open password is a real protection.
Can it contain any character?
Any except the comma, due to a limitation of the engine that encrypts the file.