Attestto Verify

Client-side browser tool that verifies PDF digital signatures with zero upload

WebfreeCosta Rica

Attestto Verify checks a PDF's PAdES, CAdES, PKCS#7 or X.509 digital signature entirely in the browser, with the document never uploaded anywhere. It's aimed at people in Costa Rica and eIDAS-region countries who need to confirm a signed document is authentic without sending it to a third-party server.

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