You need to share a confidential business proposal, send financial statements via email, or distribute sensitive reports to team members—but you can't risk unauthorized access, editing, or copying. Protecting PDF documents with passwords and encryption solves this challenge by restricting who can open, view, modify, or print your files. PDF protection tools let you add security layers that prevent unauthorized access and control how recipients use your documents. This guide explains everything you need to know about protecting PDF documents in clear, practical terms. You'll learn the two types of PDF passwords, how encryption actually works, why PDF password protection has significant security limitations, privacy considerations when using online tools, and when password protection is appropriate versus when you need stronger security measures. What is PDF Protection? PDF protection is the process of adding security features to PDF documents to control access and usage. This in...