Advanced Protect PDF Tool

Safeguard your documents with powerful local encryption. Set a secure user password to prevent unauthorized access to your PDF files.

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Drop your PDF to Protect

Upload a PDF document to begin (Max 100MB)

Document Queue

Set PDF Security

Passwords do not match!
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PDF Protected Successfully!

Why Use Our PDF Protector?

Documents containing personal data, financial records, or sensitive business info should always be protected. Our tool helps you add a layer of security by requiring a password to open the document.

100% Client-Side Protection

Your document never touches another computer. The encryption happens locally in your browser memory, ensuring your password and content stay strictly private.

Robust Encryption

We use the industry-standard PDF-Lib engine for reliable and secure password protection. Once encrypted, your PDF will require the password in any standard viewer.

How to Password Protect Your PDF

  1. Upload: Choose the PDF file you want to secure.
  2. Set Password: Enter a strong password and confirm it carefully.
  3. Protect: Click 'Protect PDF Now' to encrypt your document.
  4. Securely Download: Save your newly protected PDF to your device.