In addition to the visual impact, these images can also be used to convey discounts or special offers that might get lost as a user breezes past a text ad.
Create your Image Extention
Click the “View” dropdown and select “Image Extensions”.
Once you’ve reached the image extensions page, clicking “Create Ad extension” will open up the interface that allows you to create and apply the extensions for your ads. At first, the interface will be empty because you haven’t created any extensions yet. You can fix that by clicking “+Create new Image Extension”.
You’ll be able to add display text to your image (which will appear when a user hovers their mouse over the image), specify a description, and even set a custom destination URL. After you’ve created the extension, you can add it to your ads at either the campaign or the ad group level.