Your expo booth requires, at minimum two images: the Expo Banner and Vendor Logo. In the example below, you can see that the logo is placed on top of the banner in the top left corner. While Hopin recommends a 1080 x 1080 pixel logo file, it is displayed very small. So, make sure what you provide looks good when displayed approximately 70 x 70 pixels. The bottom half of your Expo Banner will have text superimposed over it in white text. Hopin has added an automatic gradient on the bottom half to help the white text display if your image has a light background.
The Sponsor Banner is displayed in Registration. These images are a different aspect ratio than the Expo Banners (which are all unique depending on your sponsorship/exhibitor level. .Click to see images below to see a larger version. For more details about the recommended sizes of these images, please see: https://support.hopin.to/en/articles/3845686-image-and-gif-file-dimensions.