Back to Home

Protect PDF

Secure Your Documents with AES Encryption

In an age of digital espionage, protecting your sensitive documents is non-negotiable. Handl's Protect PDF tool applies industrial-strength encryption directly in your browser.

Understanding PDF Encryption

We use standard PDF encryption methods compatible with Adobe Acrobat and all major readers. This ensures that only someone with the correct password can open the file.

Why You Should Never Upload Password-Protected Files

It's a paradox: you password-protect a file because it's sensitive, yet to process it on most sites, you have to upload it to a stranger's server. Handl solves this:

  • Local Processing: The encryption keys are generated and applied on your device.
  • Zero Transmission: The unencrypted file is never sent over the internet.

Best Practices for Passwords

  • Length: Use at least 12 characters.
  • Complexity: Mix uppercase, lowercase, numbers, and symbols.
  • Uniqueness: Never reuse passwords across important documents.

Frequently Asked Questions

How to use

  • Upload the PDF you want to protect.
  • Enter a strong password.
  • Click Encrypt PDF.
  • Download your secured document.