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Home / Tools / Protect PDF

Protect PDF online

Add a password and choose what people can do with the file. Encryption runs in your browser, so your PDF is never uploaded.

Choose a PDF fileOne PDF at a time, up to 50 MBChoose file
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Options

Permissions for people who open it

Remember your password. We do not store it, and a lost password cannot be recovered.

Free to use. No sign up needed.

Common questions

What is the difference between AES-256 and AES-128?

Both are strong encryption. AES-256 is the newest standard and the best choice. Use AES-128 only if the person opening the file uses an old PDF viewer.

Can I remove the password later?

Yes. Use the Unlock PDF tool with the same password to get an unprotected copy.

Is my password stored?

No. The password is used once to encrypt the file and is not saved anywhere.

More tools

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