PDF Protection Tool
Upload PDF files and add password protection with permission controls
Drag PDF file here
or click to select file
Comprehensive PDF Protection Features
Provide multi-layered security protection to ensure your PDF documents are worry-free
Password Protection
Use strong passwords to protect your PDF files from unauthorized access
Permission Control
Precisely control printing, copying, editing, and other operation permissions
Secure Encryption
Uses bank-level encryption algorithms to ensure absolute document security
User Permissions
Set different access and operation permissions for different users
Expiration Control
Set document expiration dates, automatically expire after the deadline
Watermark Protection
Add watermarks and copyright information to prevent unauthorized use
Security Levels
Choose the protection level that suits your needs
Technical Specifications
Professional PDF protection technology parameters
Security Guide
Learn how to securely protect your PDF documents
Upload PDF File
Select the PDF file you want to protect
Set Password
Create a strong password for your PDF
Configure Permissions
Set printing, copying, editing, and annotation permissions
Download Protected PDF
Get your secured PDF file
Security Best Practices
- Use strong passwords with at least 12 characters
- Include uppercase, lowercase, numbers, and symbols
- Avoid using personal information in passwords
- Store passwords securely and never share them