Banners, images, GIFs are frequently used in marketing to relay information to email recipients. The process of using them is fairly simple but there are several things to keep in mind while implementing them.
Banners, at its most basic, are just clickable images. You can upload them into marketing campaign by clicking the image icon in the ribbon:
A pop-up window will appear where you can enter the URL of an image already existing on the web, choose from previously uploaded images (by clicking on Browse server) or upload a new one.
Every image has native dimensions. You can adjust those to fit into your signature design nicely but that can come at a cost - a compression that results in blurriness. That's why we recommend either displaying the images at their exact dimensions or using images that are exactly 2x or 4x the displayed size. If the image is displayed at half/quarter of the native dimensions, the compression process results in crisp images.
As always, we recommend keeping the overall signature width, including banners, below 650 pixels to ensure it renders well on mobile devices.
You will be prompted to add alt text to the image. This is text that will be displayed to recipients that cannot see your images, typically because the have them disabled in their email client. It doesn't have to be very creative and long, a simple description will do.
If you closed the pop-up window in the process, don't worry; you can always open it by double-clicking the image in the editor.
When the image looks fine, it's time to make it clickable and add a link to it. That's done in the same pop-up window in the Link tab. Just paste your link there and confirm.
Don't forget that you can track the clicks and measure the impact of your campaigns. The easiest way to do it is by implementing UTM tags that will be measured in Google Analytics.