Protect PDF Online

Secure your PDF files with a password online for free with PDFNova. Encrypt your documents and protect sensitive information easily. Client-side, private, and fast.

Choose PDF to Protect

or drag and drop a PDF here

Security Best Practices

Choose a Strong Password

We recommend using a combination of uppercase letters, lowercase letters, numbers, and symbols. Avoid common words or easily guessable information like birthdays.

Save Your Password

Make sure to keep your password in a safe place. Once a PDF is encrypted, it cannot be opened without the correct password. PDFNova does not store your passwords and cannot help you recover them.