FraudWorks
All signals

File structure layer

Modified after creation

pdf_modified_after_creation

The PDF modification date is well after its creation date.

Severity
medium
Weight
35
Layer
File structure
Max effect
up to 35 of 100

How it affects the score

The signal contributes its weight times the detector's confidence. Signals combine so several medium findings add up, while one weak finding cannot decide a verdict.

Innocent explanations

Annotating, signing, or re-saving a PDF updates its modification date.

What to do

Check the incremental update and font signals for what changed.

Check your first document in under a minute.

Try the live demo on a sample or on your own file. No account needed.