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Protect PDF with Password

Add military-grade AES-256 encryption to your PDF. Only users with the correct password can open the file.

Min. 4 characters. Remember it — we cannot recover it for you.

How to Password Protect a PDF File

Securing sensitive documents before sharing them via email or cloud storage is crucial. Novaxera's free tool makes it incredibly easy to lock your PDF files with a password.

Step-by-Step Instructions

  1. Upload Document: Select the PDF file you wish to encrypt from your device.
  2. Set Password: Type a strong password in the text box. Make sure you remember this password, as it cannot be recovered if lost.
  3. Encrypt & Download: Click the "Protect PDF" button. Download the newly secured document.

Military-Grade Security

We take your privacy seriously. Novaxera uses standard AES-256 encryption — the same cryptographic algorithm trusted by banks and governments globally. When you protect a PDF with us:

  • We do not store or log your password.
  • The encryption process happens over a secure SSL connection.
  • The original and the encrypted files are automatically deleted from our servers immediately after the process is completed.