What does the risk score mean in PDF analysis?

The risk score (0-100) is an internal metric our system uses to decide whether a PDF has been modified. It combines metadata inconsistencies, structural anomalies, signature verification, and modification timestamps. You do not need to interpret this number.

What you see is a binary result: the service tells you either that the PDF has been modified (yes) or that it has not been modified (no). That yes/no outcome is what the internal scoring is used to produce. The detailed metadata and findings on the result page can help you understand the reasoning behind the answer.