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Password Protect PDF — Free Online Encryption

Add password protection to your PDF documents using AES encryption. Set an open password so only authorized users can view the file.

🔒 Private ⚡ Instant 🆓 Free Forever 🚫 No Sign-up

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Drop your PDF file here

Drag & drop or click to browse

Choose File

Password

Confirm Password

Browser-based encryption provides basic password protection. For stronger encryption, use our server-side tool.

Your files never leave your device

How it works

Upload PDF

Select your PDF file.

Set Password

Enter and confirm your password.

Encrypt & Save

Download the password-protected PDF.

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