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KDP ebook cover requirements: size, format and what to avoid

A Kindle ebook needs a cover image that you upload separately from the manuscript; it is shown on your Amazon detail page. This guide collects KDP's specifications from two of its help pages, notes where they differ, and ends with KDP's own pre-publish checklist. Paperback and hardcover covers follow different rules (see the links at the end).

How we wrote this: we drafted this guide with AI assistance from Amazon KDP's official help pages, fetched on 2026-10-17, then checked each step and number against those pages. It is a plain-English summary, not legal or publishing advice. Amazon, Kindle and KDP are trademarks of Amazon.com, Inc. or its affiliates; we are not affiliated with or endorsed by Amazon. Prices and figures are as of Oct 2026.

1. Size and shape

2. File format, color and file size

Where KDP's pages differ

KDP cover FAQ (for the upload step)Kindle Publishing Guidelines
ResolutionLists 72 dpi, and also says: "For the best results, images should have a minimum resolution of 300 PPI (pixels per inch)."300 DPI/PPI minimum
File sizeMust be less than 50 MB5 MB or less recommended

A cover saved at 300 PPI and 5 MB or less fits the figures on both pages.

3. Light backgrounds

White or very light cover art can seem to disappear against Amazon's white page. KDP suggests a narrow border, 3 to 4 pixels wide, in medium gray.

4. What the cover must not include

Make sure the cover meets KDP's Content Guidelines and that you hold the rights to everything on it.

5. KDP's pre-publish checklist

6. The cover inside the book file

Separately from the uploaded cover, KDP's publishing guidelines say a Kindle ebook must also have an internal cover image inside the book content. If you build your own EPUB:

7. If you don't design your own

KDP's free Cover Creator can design a cover for a Kindle ebook or paperback. It runs in Chrome 70+, Edge 79+, Firefox 63+ and Safari 14+. For other options, see our cover and promo graphics tools.

Related

Sources

Steps and specifications above come from Amazon KDP's official help pages. Link checked 2026-10-17. KDP changes its rules from time to time; its help pages are the authority.