Email, Messaging, & Video Calls Email How to Add a Picture to Your Yahoo Mail Signature Personalize your Yahoo Mail signature with an image By Heinz Tschabitscher Writer A former freelance contributor who has reviewed hundreds of email programs and services since 1997. our editorial process Heinz Tschabitscher Updated February 03, 2020 Email Yahoo! Mail Gmail Tweet Share Email This feature is no longer supported by Yahoo Mail; however, it is possible to insert images into signatures in Gmail and Outlook. When you create an email signature in Yahoo Mail, it gets appended to all your outgoing emails. The rich text formatting toolbar doesn't include an option for images; however, just as you can insert pictures into the body of a Yahoo Mail message, you can also add inline images to your signature. How to Add a Picture to Yahoo Email Signatures Paste an image into the signature box to included it in your signature. Select the gear in the upper-right corner of Yahoo Mail, then select More Settings. Select the Mailboxes on the left. Select your email address. Scroll down in the right pane and click inside the box under Signature. If the signature box is grayed out, click the switch beside Signature to enable it. Enter your name and any other text that will be part of the signature. Any photo you use in your signature must first be uploaded and accessible at an online hosting website. Upload it to a site such as Imgur or one of the many other hosting sites. The image should be small to look right at the bottom of an email. If it is large, resize it so that it fits better with your email signature. Go to the picture at the host site in a browser, right-click (or Control-click), then select Copy from the menu. Position the cursor in the signature box where you want the image to appear. Right-click and select Paste to place the image in the signature box. Choose Save when you're finished with the signature. Open a new email in Yahoo to view your email signature.