Complete Guide to PDF Security: Passwords, Encryption & Redaction

Understanding PDF Security Threats

Unsecured PDF documents sent over public networks or stored on shared computers can be intercepted or read by unauthorized parties.

The 3 Core Pillars of PDF Security:

1. Password Protection: Prevents unauthorized opening of the document (Protect PDF). 2. Permission Restriction: Restricts copying, printing, or form editing (Encrypt PDF). 3. Data Redaction: Permanently blackouts sensitive text strings like SSNs or bank details (Redact PDF).