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
Upload your PDF file
Select the PDF file you want to protect with a password
Set your password
Enter an open password and optionally set permission restrictions
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.