KDP File Types: A Guide to Your Manuscript and Cover Formats

You’re ready to publish your book on Amazon KDP, and you’ve reached the final technical stage: uploading your files. At this point, you will be prompted to provide your manuscript and cover in a specific KDP file type. Choosing or creating the correct file format is a non-negotiable step that ensures your book is processed correctly and looks professional to your readers.

The required file types for an ebook are completely different from those for a print book. Understanding these distinctions is crucial for a smooth and successful launch. This guide will break down the accepted and recommended KDP file types for every part of your book.

Key Takeaways & Summary

  • Different Formats for Ebook and Print: You must provide separate, specially prepared files for your ebook and your paperback/hardcover.
  • The Gold Standard for Ebooks is EPUB: The most reliable and professional file type to upload for your ebook manuscript is a validated EPUB.
  • The Only Choice for Print is PDF: For your paperback and hardcover, both your interior manuscript and your full wraparound cover must be print-ready PDFs.
  • KPF is for Kindle Create Users: If you use Amazon’s free formatting tool, Kindle Create, you will upload a single KPF file for both your ebook and print interior.

KDP File Types for Your EBOOK

For Your Ebook Manuscript (Interior):

  • Recommended: EPUB (.epub)

    • This is the universal, industry-standard file format for reflowable ebooks. It is the most reliable and professional format to upload. A clean EPUB gives you the most control over your book’s final appearance. Creating this file is a key part of professional formatting for Kindle.

  • Accepted: KPF (.kpf)

    • This is the file type generated by Amazon’s free Kindle Create software. If you use this tool, you will upload the KPF file.

  • Accepted (but not recommended): DOC/DOCX (.doc/.docx)

    • KDP will accept a Microsoft Word file and attempt to convert it. However, this automated conversion is often unpredictable and can lead to formatting glitches. It is not the professional standard.

For Your Ebook Cover:

  • Required: JPEG (.jpeg/.jpg) or TIFF (.tiff)

    • A high-resolution JPEG is the most common and recommended format. The image should be of the front cover only.

 KDP File Types for Your PAPERBACK and HARDCOVER

For Your Print Manuscript (Interior):

  • Required: Print-Ready PDF (.pdf)

    • This is the only accepted file type. The PDF must be a single file containing your entire book, formatted to your exact trim size with the correct margins. It is a static, non-editable file.

For Your Print Cover (Paperback and Hardcover):

  • Required: Print-Ready PDF (.pdf)

    • This is the only accepted file type. The PDF must be a single, flat file containing your front cover, back cover, and spine, all laid out to the precise dimensions required by KDP. The dimensions depend on your trim size and final page count, which is why using the KDP Cover Calculator is essential.

The Professional Workflow

A professional publishing process focuses on creating the highest-quality, most reliable file types.

  1. Your manuscript is professionally edited in a DOCX file.

  2. That DOCX is then used by a professional formatter to create two final files:

    • A validated EPUB for the ebook.

    • A print-ready PDF for the paperback.

  3. Your designer provides two cover files:

    • A high-resolution JPEG for the ebook.

    • A print-ready PDF for the paperback.

This entire process of creating the correct KDP file types is a core component of our Amazon KDP publishing services. For a full breakdown of the technical specs, you can always refer to Amazon’s official manuscript formatting guide.

Let Us Create Your KDP-Ready Files

Short FAQ

Q: Can I just upload my Word document for everything?
A: No. While KDP will accept a Word document for the ebook interior, it is not recommended for a professional result. For the paperback and hardcover interior and cover, a PDF is the only accepted file type.

Q: What is a “validated” EPUB?
A: A validated EPUB is one that has been checked by an official tool to ensure its code is clean and adheres to industry standards. This guarantees it will work correctly on all e-reading devices. Professional formatters will always provide a validated file.

Q: Why does the print cover have to be a PDF?
A: A print-ready PDF is a high-resolution, static file that locks in all the fonts, images, and layout information exactly as the designer intended. This ensures that what you see on your screen is exactly what will be printed, with no unexpected shifts or font substitutions.

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