Protect PDF with a Password

Require a password before the document can be opened.

Processed in your browser

Drop your PDF here

or

Your files stay on your device.

Processed in your browser

Related tools

How to use

  1. 1.Select your PDF.
  2. 2.Enter and confirm a password.
  3. 3.Press Protect PDF.
  4. 4.Download the protected document and store the password safely.

About this tool

Protect PDF encrypts a document so it cannot be opened without the password you set. The password is applied on your device and is never transmitted or stored by PDFYoga.

Browser-based encryption has real limits: it supports standard PDF password encryption, and the strength of your protection depends mostly on the strength of your password. If you lose the password, the document cannot be recovered.

Privacy

This tool runs entirely in your browser. Your file is read from disk by the page, processed with WebAssembly and JavaScript on your device, and the result is created locally. Nothing is uploaded to a PDFYoga server.

FAQ

Is my password sent anywhere?
No. Encryption happens in your browser and the password stays on your device.
What if I forget the password?
The file cannot be opened or recovered. Store it in a password manager.
Which encryption is used?
Standard PDF encryption supported by mainstream readers.
When is this tool available?
It is in development and will appear here once it is reliable.