Kindle Direct Publishing (KDP) Cover/Product Image Requirements
Your Kindle book cover image is also the product image used to market your book on Amazon.com. The term 'cover image' is synonymous with 'product image' and will be used interchangeably throughout this document.
Amazon KDP accepts two types of files for cover images:
• JPEG (Joint Photographic Experts Group)
• TIFF (Tagged Image File Format)
Minimum 500 x Maximum 1280 pixels
Recommendations for the size of your cover art:
• Minimum of 500 pixels, horizontally
• Maximum of 1280 pixels, vertically
Save at 72 dots per inch (dpi) for optimal viewing on the web.
Product images display on the Amazon website using RGB color mode.
RGB is the color mode native to the web and most color screen displays. RGB stands for red, green, and blue. These three colors displayed at varying levels of intensity create over 16 million colors.
The RGB color space is used for product images. Use color images whenever possible and relevant. The Kindle reading device has a black & white screen today but Kindle applications for other devices, such as Phone or PC, take advantage of colors.