Curious Statistics
Real-time insights from thousands of PDF verifications
PDFs Checked
Were Modified
Years Old (Oldest PDF)
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
App that converted or last saved the PDF
Library of Knowledge
Hall of Suspicious Fame
Modification Calendar
Which months see the most PDF tampering by creation date?
Did You Know?
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