This article explains how to do all of the above to validate the authenticity and integrity of a digital document. Use the DigitalSignatureUtil class to work with digital signatures. You can also remove all digital signatures from a document.

Signing a document digitally means creating a signature using the signer’s private key where a mathematical algorithm is used to encrypt the generated hash.Īspose.Words allows you to detect, count, or verify existing digital signatures, and also add a new signature to your document to find out any tampering in it.

Each digital signature is unique for each signer because of following the PKI protocol to generate both public and private keys.

Detect, Count, and Verify Digital SignaturesĪ digital signature is a technological implementation of electronic signatures to sign documents and authenticate the signer to guarantee that a document has not been modified since it was signed.

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How to add signature line in word