Adding a Digital Signature

After you’ve finished a document, you might consider adding an invisible digital signature—an electronic, secure stamp of authentication on a document. Before you can add a digital signature, you need to get a digital ID, or digital certificate, which provides an electronic way to prove your identity. A digital certificate checks a public key to validate a private key associated with a digital signature. To assure a digital signature is authentic, it must have a valid (non expired or revoked) certificate issued by a reputable certification authority (CA), and the signing person must be from a trusted publisher. If you need a verified authenticate digital certificate, you can obtain one from a trusted Microsoft partner ...

Get Word 2013 on Demand now with the O’Reilly learning platform.

O’Reilly members experience live online training, plus books, videos, and digital content from nearly 200 publishers.