Protect Your PDF with a Password – Secure & Free

Encrypt your PDF files by adding a strong password in seconds. 100% free, secure & fast – no software needed!

Best Free PDF Protection Tools

Platform Free Usage File Size Limit Direct Link
iLovePDF ✅ Limited Free 15MB
SmallPDF ⚠ Limited Free 5MB
PDF2Go ✅ Free 50MB
Adobe Acrobat ✅ Free 100MB

How to Protect a PDF?

  • 1. Choose one of the best online protection tools above.
  • 2. Upload your PDF file.
  • 3. Enter a strong password.
  • 4. Click "Protect" and wait for the process to finish.
  • 5. Download your password-protected PDF file.

Why Use Our PDF Protection Tool?

✔ Free & Secure | ✔ Strong Encryption | ✔ Fast Processing | ✔ No Installation Required