Protect PDF

Add password protection to PDF files free. Encrypt PDFs with open password & permissions. 100% browser-based for security.

Overview

Add password protection to your PDF files for free. Set open passwords to control who can view your document and permission passwords to restrict printing, copying, and editing. Keep sensitive contracts and financial documents secure.

How to Password Protect a PDF

1

Upload your PDF file

Select the PDF file you want to protect with a password

2

Set your password

Enter an open password and optionally set permission restrictions

3

Download protected PDF

Click protect to encrypt your PDF and download the secured file

Is this PDF encryption tool really free?

Yes, 100% free with no limitations. Add both open passwords and permission passwords to your PDF documents. The encryption happens right in your browser, so sensitive documents like contracts and financial records never leave your device.