How to Use the PDF Protector
Secure your sensitive PDF documents with a strong password completely offline within your browser.
Steps
- Drag and drop your PDF into the upload area.
- Enter a User Password (required to open the file) and an optional Owner Password (to restrict editing).
- Select your preferred encryption strength (AES-256 is recommended).
- Click "Protect PDF" and download your encrypted file.
About This Tool
This tool utilizes a local WebAssembly port of the `qpdf` library. It encrypts your file directly in your browser's memory, guaranteeing that your private documents are never uploaded to any server.
FAQs
1. What is the difference between User and Owner passwords?
The User password is required just to open and view the PDF. The Owner password is used to restrict permissions like printing, copying, or editing the file.
2. Are my files safe?
Yes. The entire encryption process happens locally on your device. Your unencrypted file never leaves your computer.
3. What happens if I forget the password?
If you forget the password, you will not be able to open the file. We cannot recover it for you since the file was never uploaded to our servers.