Protect PDF with Password

Add a password to your PDF document to protect sensitive information. Encrypt your PDF files online with AES encryption for maximum security.

Lock PDF

Protect your PDF with password encryption

Drop your PDF here

Select a PDF file to lock

Tips

  • • Use a strong, unique password
  • • Remember your password to open the file
  • • Industry-standard encryption
  • • Perfect for sensitive documents
  • • Share locked files safely

How to add a password to PDF

  1. Upload the PDF file you want to protect.
  2. Type a strong password to encrypt your document.
  3. Click Protect PDF to securely encrypt the file.
  4. Download your newly protected PDF file.