Protect PDF

Encrypt and add password protection to your PDF files securely.

Why use our Protect PDF?

Our Protect PDF is designed for speed, privacy, and ease of use. Unlike other online tools that require you to upload your sensitive documents to a server,SxTools performs all conversions and modifications locally on your device.

Key Benefits

  • 100% Privacy: Your PDF files never leave your computer.
  • Fast Processing: Powered by modern WebAssembly technologies.
  • No Limits: Process as many files as you need, for free.

How it works

We use advanced browser capabilities to handle PDF files. When you select a file, the processing engine (PDF.js or pdf-lib) runs directly in your browser tab. This ensures that your data remains secure and the process is lightning fast.