Images to be uploaded in to the Website Builder system should be in either PNG or JPEG format.
Please Note: The resolution of images on the web do not need to be as high as you would need for print or photographic purposes. We recommend you therefore resize images that may have been prepared for these other media which will in turn reduce their file size.
You will see that the max size of stored images and files in Website Builder are limited to 10MB each. This is shown in the display box just below the Images button on the left hand widget window. You will also see the current amount of space you have used of your total image storage.