Learn how to properly format and export your eBook for Amazon Kindle Direct Publishing, Apple Books, and other digital platforms.
Proper formatting is one of the most important steps in publishing your eBook. Even high-quality content can be rejected or receive poor reviews if formatting is inconsistent.
This guide explains which file formats to use, how to structure your manuscript, and how to export a Kindle-ready file that meets Amazon KDP standards.
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Amazon KDP accepts DOCX and EPUB formats for eBooks. EPUB is the preferred format for most modern publishing workflows.
Always preview your file before submission using Kindle Previewer.
Poor formatting is one of the top reasons books fail Kindle quality review.
For advanced workflows see our AI eBook formatting guide .
Before uploading your manuscript to Kindle Direct Publishing (KDP), take a few minutes to review Amazon's current formatting guidelines. Most publishing issues can be avoided by following a simple checklist before you export your eBook.
Following these Amazon KDP formatting guidelines greatly reduces the chance of formatting errors and helps ensure your book passes Amazon's review process on the first submission.
Amazon KDP accepts both EPUB and DOCX files, but EPUB has become the preferred format for most modern publishing workflows. EPUB adapts more consistently across Kindle devices and usually requires less automatic conversion during upload.
| Format | Best For | Advantages |
|---|---|---|
| EPUB | Most authors | Industry standard, cleaner formatting, fewer conversion issues. |
| DOCX | Microsoft Word users | Easy to edit, widely supported, quick to export. |
If your writing software supports it, exporting your eBook as EPUB is generally the safest option for Amazon KDP formatting. Authors working primarily in Microsoft Word can still upload DOCX files, but they should always preview the converted book before publishing.
Even well-written books can be rejected or display poorly on Kindle devices if they contain formatting problems. Before you export your eBook, check for these common issues:
Running your manuscript through Kindle Previewer before uploading to Kindle Direct Publishing is one of the easiest ways to catch formatting problems and improve the reading experience.
Download Kindle Previewer to see how your book will appear across Kindle devices.
Previewing allows you to catch layout issues before publishing.
Amazon reviews submissions for formatting consistency, structural integrity, and content quality.
Reviewing your manuscript before upload significantly reduces rejection risk.
You can also refine writing quality using our AI eBook editing tools .
Pro Tip: Before uploading your book, test it on both a Kindle e-reader and the Kindle mobile app. Small formatting issues that are easy to miss on a desktop screen often become obvious on smaller devices.
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