ToolForgeby ForgeSparse

Protect PDF

Add a password to secure your PDF.

Upload a PDF

Drop a PDF here, or click to browse

PDF files only

Add a password to a PDF online

Protect PDF adds password encryption to your file — with control over whether printing and copying are allowed — so only people you share the password with can open it.

Why use this tool

Real PDF encryption

Uses standard PDF password encryption, requiring the password in any PDF reader to open the file.

Permission controls

Choose whether to allow printing and text copying, even for people who have the password.

100% private

Your file and password are processed entirely in your browser — never uploaded.

Works everywhere

The protected PDF opens correctly in Adobe Acrobat, browser PDF viewers, and other standard readers.

How it works

  1. 1Upload the PDF you want to protect.
  2. 2Set a password and choose permission options.
  3. 3Click Protect & download.

Frequently asked questions

Good to know

  • Anyone opening this PDF will need the password you set.
  • Choose a password you'll remember — there's no way to recover it later if lost.
  • Everything runs locally in your browser; your password is never sent anywhere.