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Protect PDF

Password protect your PDF files

Use Protect PDF Free

Add 256-bit AES password protection to any PDF. Set open passwords and restrict printing, copying, or editing.

How It Works

1

Upload your PDF file

2

Set an open password and/or restrict permissions

3

Download the encrypted, password-protected PDF

Common Use Cases

Protect confidential reports and contracts
Prevent unauthorized printing or copying
Secure PDFs before sharing via email
Lock financial and legal documents

Frequently Asked Questions

What encryption level is used?
We use 256-bit AES encryption — the same standard used by banks and governments.
Can I restrict printing only?
Yes. Use the owner password to restrict permissions without requiring a password to open the file.
Can the password be removed later?
Yes, use our Unlock PDF tool with the correct password to remove protection.

Ready to Protect PDF?

Free to use. No signup required. Runs in your browser.

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