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A digital signature is a specific type of signature that is backed by a digital certificate, providing proof of your identity. Digital signatures are recognized as being a more secure type of e-signature because they’re cryptographically bound to the signed document and can be verified.

When you use a digital certificate obtained from a trusted third party, the resulting digital signature is virtually impossible to spoof. It also provides powerful evidence of signer identity, that the signed document was not altered, and that the signatures are valid.

Uniquely linked to the signer.
Capable of identifying the signer
Linked to the data signed so that any later change in the data is detectable.