Signature verification, explained.
In short Practical guides to checking signatures, spotting forgeries and handling signature data, written by the team behind Unforged Nib. No jargon, and no numbers we can’t stand behind.
How to verify a signature: a practical guide
How to verify a signature step by step: what to compare it with, what to look at by eye, why the person’s own references matter, and when to escalate.
Read the guideWhat is signature verification software?
What signature verification software is, how comparing a signature with the person’s own references works, and what a verdict with reasons looks like.
Read the guideSignature verification API: what to look for
Choosing a signature verification API: integration, verdict design, data handling and pricing models, with a checklist to use on any provider.
Read the guideDetecting forged signatures: tracing, photocopies and pasted images
How forged signatures are made and how to spot them: tracing, photocopies and scans of a real signature, pasted images, and someone else signing.
Read the guideProof of delivery signatures: checking them at scale
Checking proof of delivery signatures at scale: what to capture at the door, comparing with the recipient’s references, and answering disputes.
Read the guideSignatures and UK GDPR: handling signature data
Signature data under UK GDPR: personal and biometric data, lawful basis, impact assessments, processors and retention. General guidance, not legal advice.
Read the guide
26 short definitions, from reference signature to webhook.
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