Protect PDF Online

Add password protection to your PDF files instantly. Secure your documents and prevent unauthorized access — fast, free, and secure.

Select PDF File

or drag & drop your PDF here

What is a Protect PDF Tool?

A Protect PDF tool allows you to secure your PDF files by adding a password. This prevents unauthorized users from opening or accessing your document.

Why Protect Your PDF?

Protect sensitive documents
Prevent unauthorized access
Secure business files
Ensure privacy and confidentiality

Frequently Asked Questions

Is this tool free?

Yes, it is completely free.

Is my file secure?

Your file is processed locally in your browser and never uploaded.

Can I remove the password later?

Yes, you can use our Unlock PDF tool.

Does it work on mobile?

Yes, fully compatible with all devices.