Verifier prototype

Check uploaded PDFs for manipulation risk.

This prototype performs simple structural checks on uploaded PDF files and returns a basic risk indication. It is not a forensic proof tool and does not replace human review.

Upload a PDF

This verifier flow is useful even when the document was not pre-signed with Authena.

What this prototype can and cannot do

Can do

Flag suspicious PDF structure, multiple revisions, metadata anomalies, and risky embedded features.

Cannot do

Prove fraud, detect all manipulations, or replace a forensic expert or signed verification record.

Best use

Initial document risk screening when PDFs are uploaded from outside trusted systems.