A digital signature is an electronic, encrypted, stamp of authentication on digital information such as email messages, macros, or electronic documents. A signature confirms that the information originated from the signer and has not been altered.

A digital signature is an electronic, encrypted, stamp of authentication on digital information such as email messages, macros, or electronic documents. A signature confirms that the information originated from the signer and has not been altered.

A signature block in Outlook can be as simple as your name and a telephone number. Or you can bump up its presentation with a photo or a logo and even add some social networking service icons like Facebook, X (formerly Twitter), LinkedIn, and YouTube. We'll show you how.

All you have to do is get the template, copy the signature you like into your email message and personalize it to make your own Outlook signature. Check out the video to see how it's done.

The Signature Details dialog box displays certificate information such as the signer’s name in the Signing as box, and who issued the certificate. Open the file that contains the certificate you want to view.

Download the templates in Word, customize with your personal information, and then copy and paste into the Edit signature box. You can add links and images to your email signature, change fonts and colors, and justify the text using the mini formatting bar under Edit signature.

Your digital signature, which includes your certificate and public key, originates from your digital ID. And that digital ID serves as your unique digital mark and signals the recipient that the content hasn't been altered in transit.

This article explains how you can get or create a digital signature for use in Office documents. To learn more about how to use them in Office documents, see Add or remove a digital signature in Office files.

When you sign a signature line, you add a visible representation of your signature and a digital signature. In the file, right-click the signature line and choose Sign.

Learn how to create and add a signature to your email messages in Outlook Web App.