While eShip is great at displaying the dimension, file size, and DPI limits for logo uploads, it would be wonderful to also include the explicitly accepted file type format(s) in the UI guidelines.

Additionally, it seems that JPEG images might no longer be working as expected. It would be a huge help if both PNG and JPEG formats could be fully supported, or if the guidelines could clearly state if PNG is now the preferred format.

Having this extra bit of guidance would go a long way in helping users avoid upload hiccups when setting up their branding!