Product Updates
Common PDF Editing Tools and How We Detect Their Traces
PDF editing tools leave fingerprints in metadata and file structure. How forensic analysis detects Adobe, Foxit, and online editors.
9 min read
PDF Security Blog
Expert guides on PDF security, document fraud prevention, and practical tips for verifying PDF authenticity. Learn how professionals detect modified invoices, contracts, and certificates — and how to protect your organization from document tampering.
Tutorials
How to Verify a PDF Before Making a Payment: 7-Step Checklist
7-step checklist to verify invoice PDFs before payment. Check metadata, compare bank details, validate signatures, and prevent payment fraud.
9 min read
Tutorials
How to Report a Modified PDF to the Sender: A Professional Guide
How to professionally report a modified PDF to the sender. Email templates, dispute process, and best practices for handling document verification issues.
9 min read
Tutorials
Understanding PDF Metadata: What Your Documents Reveal
PDF metadata explained: creation dates, applications used, modification history. How to view it, privacy concerns, and use in document verification.
8 min read
Industry Insights
Why Businesses Need PDF Verification in Their Workflow
Why automated PDF verification is essential for business. Prevent document fraud, reduce losses, and integrate verification into your workflow.
8 min read
Industry Insights
PDF Fraud in Real Estate: Protecting Property Transactions
Real estate PDF fraud: how criminals modify deeds, wire instructions, and contracts. Prevention strategies to protect your property transactions.
9 min read
Product Updates
The Anatomy of a Modified PDF: What Our Algorithm Detects
How PDF modification detection works: metadata analysis, signature verification, cross-reference tables, and tool fingerprinting. Technical deep-dive.
10 min read
Security
Digital Signatures vs Metadata: What Actually Proves PDF Authenticity?
Digital signatures vs metadata for PDF verification. Which method is stronger, their limitations, and when to use both for comprehensive document authenticity.
9 min read
Security
5 Signs a PDF Document Has Been Tampered With
Five warning signs of PDF tampering: mismatched dates, suspicious metadata, visual issues, invalid signatures, and revision layers. Spot document fraud.
10 min read
Security
Invoice Fraud: How Criminals Modify PDFs to Steal Money
How criminals intercept invoices, modify PDF bank details, and redirect payments. Real-world examples and prevention strategies to protect your business.
10 min read
Tutorials
How to Check if a PDF Has Been Edited: 5 Methods Anyone Can Use
Five simple methods to detect PDF modifications: check properties, examine metadata, spot visual issues, verify signatures, and use automated tools.
9 min read
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