01
Upload Reference Signature
· the verified originalReference
Drop, paste, or click · e.g. ID card / known-good exemplar
02
Upload Questioned Signature
· the document in questionQuestioned
Drop, paste, or click · e.g. contract / contested page
Images are transmitted over TLS to a server-side function. The biometric API key is stored as a server secret and is never exposed to the browser.
03
Verification Result
· match confidence · discrepanciesUpload reference + questioned signature, then run analysis