PDF schützen

Add AES-256 password protection to your PDF to prevent unauthorized access, free online.

📄 Click or drop a PDF to password-protect

So verwendest du PDF schützen

  1. Upload the PDF you want to protect.
  2. Enter and confirm a password.
  3. Click protect and download the encrypted PDF.

Häufig gestellte Fragen

What encryption is used?

Files are encrypted with AES-256, the same strong standard used by professional tools.

What happens if I forget the password?

The password cannot be recovered, store it safely. Use the Unlock tool with the correct password to remove protection.

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