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Security

PDF security and privacy best practices

4 articles
Security

How to Unlock Password-Protected PDFs: Remove Security When You're Authorized

Learn how to remove passwords from PDFs you own or have permission to unlock. Legal methods for unlocking protected PDFs explained.

Dec 28, 2025
12 min read
unlock-pdfremove-passwordpdf-security
Security

How to Digitally Sign PDFs: The Complete Guide for 2025

Learn everything about digital signatures for PDFs—legality, security, and how to sign documents electronically. Free tools and step-by-step instructions.

Dec 18, 2025
13 min read
digital-signaturepdf-securityesignature
Security

How to Password Protect a PDF: Complete Security Guide 2025

Learn how to password protect PDFs with strong encryption. Step-by-step guide covering permissions, user passwords, and security best practices.

Dec 17, 2025
7 min read
pdf securitypassword protectionencryption
Security

PDF Encryption Standards: RC4 vs AES - Which Should You Use?

Understand PDF encryption standards RC4 and AES. Learn which encryption method keeps your PDFs secure and why it matters in 2025.

Dec 17, 2025
9 min read
encryptionpdf securityaes
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