PDF Protection Settings
Drag & Drop PDF Here
or click to browse files
PDF — Max 100MBNo PDF uploaded yet
Upload a PDF file to add password protection and encrypt it.
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Tool Information
Shortcuts
Ctrl + KEscCtrl + EnterQuick Actions
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How to Use
Follow these simple steps to protect your PDF with a password.
Upload PDF
Drag & drop or click to select any PDF file from your device.
Set Passwords
Enter a user password (to open) and/or owner password (to control permissions).
Choose Permissions
Toggle printing, copying, modifying, and annotating permissions as needed.
Download
Click Protect to encrypt and download your password-protected PDF.
Why Use This PDF Protector?
The fastest, most private way to password-protect your PDF files — entirely in your browser.
Client-Side Processing
All protection happens in your browser. No files are uploaded to any server.
Dual Password Protection
Set both user and owner passwords for maximum security control.
Granular Permissions
Control printing, copying, modifying, and annotating permissions individually.
No Registration
Use the tool instantly without creating an account or providing personal info.
100% Free
No hidden fees, no watermarks, no file size limits. Completely free forever.
Instant Download
Get your protected PDF immediately after encryption with no waiting time.
Your Privacy is Protected
All protection happens entirely in your browser using pdf-lib. No PDF files are ever uploaded to any server. Your documents never leave your device.