Protect PDF

Encrypt your PDF with a password to prevent unauthorized access.

Select PDF File

or drag & drop PDF here

About Protect PDF Online

Secure your PDF documents by encrypting them with a password online.

Select the PDF file you want to lock with a password.

Type in a strong password to lock the file.

Download the encrypted PDF which now requires the password to open.

Your files are processed securely on our server and automatically deleted after 7 days. We never share or store your data.

Processing runs instantly on our optimized VPS server, bypassing slow client-side queues.

All PDF tools are accessible for free without watermark, limits, or registration.

Encryption runs locally on your machine using standard PDF security algorithms. We do not store or see your password.

Once protected, the file cannot be viewed without entering the correct password.

Give us a star rating or report any bugs you encountered with this tool.