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To learn more about getting a digital ID, you could check the document here. The certificate is usually valid for a year, though it depends on the issuing authority. This acts as an assurance that the document was not altered during the transition. When you send a digitally signed document, you also send your certificate and a public key. It also ensures that the information has not been altered during the transition.īefore creating a digital signature, you need to have a signing certificate. Add, remove & change signatures in Word filesĪ digital signature is an encrypted electronic stamp that assures that information in the digital document is from the signer. The procedure is similar but in this post, we will talk bout Microsoft Office Word. Today in this post, we will see how to add, remove and edit signatures in Word, Excel, PowerPoint files on Windows PC. And that is exactly what a digital signature is. As we move from paper to computer, for almost every task, it becomes important to find a substitute for a signature. We all know the purpose of a signature is to validate the authenticity and validity of a document.