Confidential
Lock & Protect Sensitive PDF Files
Add tamper protection and security headers to confidential documents directly in your browser.
Protect & Encrypt PDF Online
100% In-Browser Privacy (Zero Server Upload)
Drag and drop your file here
or click to browse from your computer
Formats: .pdf, application/pdf•Unlimited File Size
Client-Side Processing
Zero Data Retention
Standard PDF Security
How to Use Protect & Encrypt PDF Online (Step-by-Step Guide)
No software installation required. Complete your task in 3 easy steps directly in your browser.
1
Select Document
Choose the file you want to protect.
2
Security Applied
Client-side protection headers are applied to the document tree.
3
Save Protected File
Download your secured file.
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Got Questions?
Frequently Asked Questions
No! All processing occurs in your own browser instance.