Amazon’s image requirements state that the main image must display a product on a plain background. The additional image slots can include other angles of your product, lifestyle images, the product being used, images with text overlay, etc.
Images must be in focus and professionally lit with realistic color. Other products or objects may demonstrate the use or scale of the product. The product and props should fill 85% or more of the image frame.
Amazon suggests images should be 1,000 x 1,000 pixels or larger. We recommend sizing images at 1,600 x 1,600 pixels with a maximum file size of 10MB. The permitted formats are TIFF, JPEG, GIF and PNG.
This Guide to Taking Better Amazon Product Images reviews the image requirements and includes a detailed description of all the required steps to improving your images. Amazon has a list of requirements that can all be found when you log into your seller account and go to the product image requirements help section.