Free Online Protect PDF Tool

Add password protection to a PDF before sharing it. Download the protected copy and test opening it with the intended password.

Temporary server processing No registration

PDF options

Supported inputs, outputs, and browsers

Supported input
PDF
Output
Password-protected PDF
Browser compatibility
Use a current version of Chrome, Edge, Firefox, or Safari with JavaScript, secure uploads, and downloads enabled. Upload time and server decoding support can limit very large or unusual files.

How to use Protect PDF

  1. 1.Keep the password separately from the file and test the downloaded copy in the viewer your recipient uses.
  2. 2.Run the operation with the displayed controls, then open and review the result before sharing it.

Limitations

  • Password protection is not a substitute for controlling who receives the original or unprotected copies.

Privacy and processing

Temporary server processing

The input is sent over HTTPS to the Free E Tools server only for the requested operation. Uploaded and generated files are temporary processing files, not permanent storage. No registration is required; avoid highly sensitive material when an online server workflow is inappropriate.

Frequently asked questions

What should I know before using Protect PDF?

Password protection is not a substitute for controlling who receives the original or unprotected copies.

Where is my input processed?

The input is sent over HTTPS to the Free E Tools server only for the requested operation. Uploaded and generated files are temporary processing files, not permanent storage. No registration is required; avoid highly sensitive material when an online server workflow is inappropriate.