Complete guide to PDF security. Learn how to protect your PDF documents with passwords, encryption, redaction, and other security measures. Best practices for secure PDF handling.
Password protection and basic access controls
Encryption, digital signatures, and advanced controls
Redaction, watermarking, and content protection
Common PDF security threats and vulnerabilities
Industry best practices for PDF security
How to audit and test PDF security
Require a password to open or modify the PDF
Use case: General document protection
Encrypt PDF content with AES-256 encryption
Use case: Sensitive document protection
Add digital signatures for authenticity and integrity
Use case: Legal and official documents
Permanently remove sensitive information
Use case: Remove confidential data
Add visible or invisible watermarks
Use case: Document ownership and tracking
Control printing, copying, and editing permissions
Use case: Restrict document usage
Protect PDF with password
Unlock protected PDF
Remove sensitive information
Add security watermark
Learn about PDF encryption
Best practices for passwords
Common PDF security risks
Test your PDF security
Protect your sensitive information with our security tools