A digital signature of a Word document is a way of verifying that the document is written by the person who claims to have written it. It works by encrypting (or ‘hashing’) the document so that only a person in possession of a special key can unlock and access the content. This ensures that documents are not altered or tampered with, providing a secure and reliable means for businesses to verify that their documents are legitimate and up-to-date. By using a digital signature, businesses can ensure that their customers’ sensitive data remains confidential, as well as minimize the risk of fraud from counterfeit documents.