PDF Fraud & Tampering Statistics
Real-world tamper rates and modification patterns from 13,759 PDF verifications
Every PDF has both Creator (app that created the original document) and Producer (app that converted or last saved to PDF). They often differ even in unmodified files (e.g. Word + Print to PDF).
Top Producers
Volume Overview
Total pages analyzed: 51,986
Total size of all files: 6.27 GB
Security Findings
144 PDFs were signed but then modified after signing
89 (0.6%) files contain embedded JavaScript
Longest incremental update chain: 9 revisions
Modification Calendar
Which months see the most PDF tampering, by document modification date?
Signature & Tool Statistics
Most common producer: iText
Digitally signed: 5.3% of all PDFs
PDF Versions in the Wild
Which PDF standard do most documents use?
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