Add a password to a PDF with AES 128-bit encryption so it cannot be opened without it. Set print, copy and edit permissions, all in your browser.
About this tool
Lock a PDF with a password so it cannot be opened without it.
How to use PDF Password Protector
- Choose a PDF file.
- Enter the password twice, and optionally set permissions and an owner password.
- Click Protect PDF to download the locked copy.
Worked example
Lock a payslip PDF before emailing it, and send the password by text message rather than in the same email.
Is my file or password uploaded?
No. Encryption happens in your browser.
What if I forget the password?
It cannot be recovered. Keep a copy of the unprotected original somewhere safe.
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