Trusted Signatures

Seals PDFs with a cryptographic signature to stop invoice fraud

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Trusted Signatures prevents document fraud by sealing each PDF with a cryptographic signature and an optional TSA timestamp; if the file changes by even one pixel after leaving the system, the seal breaks and verification fails.

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Full match profile

Behind the summary, Matchbox keeps a richer profile of Trusted Signatures - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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