How to Format a Book for Kindle and Paperback (KDP Specs)

Bad formatting doesn't just look unprofessional — it gets your book rejected by Amazon's review system or, worse, published in a state that makes readers demand refunds. I've seen authors spend months writing a great book, then torpedo the whole thing with a Word document formatted in 14pt Times New Roman with default 1-inch margins.

Formatting for KDP is a technical skill, but it's not complicated once you understand what Amazon actually needs. This guide covers every spec for both Kindle ebooks and KDP paperbacks, so you can get it right the first time.

Understanding the Two Formats: Ebook vs. Print

These are fundamentally different products with fundamentally different requirements. An ebook is a reflowable document — the reader controls the font size, and the text adjusts dynamically. A print book is a fixed-layout PDF where every element stays exactly where you put it.

That means you almost always need to create two separate formatted files: one for the Kindle ebook and one for the print paperback. Some authors try to convert the same Word file for both — this rarely works well for anything but the simplest books.

Formatting Your Kindle Ebook

Kindle ebooks need to be clean, simple, and styled in a way that works across every screen size and device. Here are the key requirements:

Accepted File Types: Amazon prefers .docx (Word) for simple text-heavy nonfiction. For anything with complex layouts, images, or special formatting, .epub is better. Never upload a raw PDF for the ebook version — the results are usually terrible.

Fonts: For ebooks, don't embed specific fonts unless you have a very good reason. Kindle devices and apps override font choices anyway. Focus on clean heading hierarchy using Word's built-in Heading 1, Heading 2, and Normal styles — not manual formatting.

Images: All images should be at least 300 DPI and saved as JPEG or PNG. For ebooks, maximum image width is 1000 pixels. Always set images to "in line with text" in Word — floating images cause formatting chaos on Kindle.

Table of Contents: For nonfiction ebooks, an active, clickable Table of Contents is not just nice to have — it's expected. Use Word's built-in TOC generator linked to your heading styles. This creates a navigable TOC that works on all Kindle devices.

"Your ebook formatting should be invisible. If readers notice it, something went wrong."

Front and Back Matter: Include a title page, copyright page, and author bio at minimum. For nonfiction, a Resources page or "Also By" section in the back matter is a great place to promote your other work or website.

KDP Paperback Specifications

Print formatting is more exacting than ebook formatting. Everything you do has to account for physical printing: ink, paper weight, bleed, and binding. Here's what you need to know:

Trim Size (Page Size): The most common trim size for nonfiction is 6" x 9". This is what most business, self-help, and how-to books use. Other common sizes include 5" x 8" (smaller/more personal feel) and 5.5" x 8.5". Choose your trim size before you format — changing it later means reformatting everything.

Margins: Amazon's minimum margins depend on your page count. For books over 300 pages, the inside (gutter) margin must be at least 0.875" to ensure text isn't swallowed by the spine. Don't use identical margins on all four sides — the inside margin always needs to be larger.

Fonts for Print: Unlike ebooks, print formatting uses specific fonts. The industry standards for nonfiction body text are Garamond, Georgia, Palatino, or Minion Pro at 11-12pt with 1.2-1.4 line spacing. Avoid Arial, Calibri, or any sans-serif font for body text — they're harder to read in print.

Bleed Settings: If your design elements (cover-style pages, images, headers/footers with color) extend to the edge of the page, you need bleed. Bleed means adding 0.125" extra on each side that will be cut off during printing. Most basic nonfiction books don't need bleed on interior pages.

Setting Up Your Word Document for Print

Most authors format in Microsoft Word, which works fine for straightforward books. Here's the essential setup:

• Set page size to your trim size (e.g., 6" x 9") under Layout > Size > More Paper Sizes
• Set inside/outside margins (not left/right) under Layout > Margins > Custom Margins, checking "Mirror Margins"
• Set your body text style to 11-12pt Garamond or Georgia with 1.2 line spacing
• Use section breaks (not page breaks) before chapters to allow different header/footer settings
• Add page numbers in the footer, starting on chapter 1 (not front matter)
• Export as PDF using "Best for print" or "PDF/A" settings

Check that your PDF has embedded fonts — this is a common rejection reason. In Word, go to File > Options > Save and check "Embed fonts in the file."

Better Tools for Professional Results

Word is fine, but it's not ideal for book formatting. If you want genuinely professional-looking interiors, consider these tools:

Vellum (Mac only): The gold standard for ebook and print formatting. Beautiful templates, extremely easy to use, outputs perfect files for both KDP and IngramSpark. One-time purchase around $250. Worth every cent if you're publishing multiple books.

Scrivener: A writing tool with solid export functionality. The compile feature can create well-formatted ebook files, though it requires some learning to get print output right.

Adobe InDesign: Professional-grade layout software used by traditional publishers. Steep learning curve but ultimate control. If you're formatting workbooks, heavily designed books, or textbooks, this is the tool.

Atticus: A newer alternative to Vellum that works on Windows too. Strong formatting capabilities and a good option for authors who can't use Mac.

Cover Design Specifications

Your cover is submitted as a separate file from your interior. KDP has very specific requirements:

• Ebook cover: Minimum 1000 x 625 pixels, maximum 10,000 x 10,000 pixels. Ideal is 2560 x 1600 pixels with a 1.6:1 ratio. Save as JPEG or TIFF under 50MB.
• Print cover: Must include front, back, and spine. The spine width is calculated based on page count and paper type. KDP provides a cover calculator — use it to get the exact spine width before designing.
• Print covers need 0.125" bleed on all edges and a 300 DPI resolution
• Keep all important elements (title, author name) at least 0.25" inside the trim edge

Common Formatting Mistakes to Avoid

• Using spaces instead of paragraph indents: Use paragraph styles with a 0.25" first-line indent, not 5 spacebar presses
• Double spacing between paragraphs: Traditional publishing uses either an indent OR a space between paragraphs — not both
• Wrong PDF export settings: Always export at 300 DPI or higher. "Email-optimized" PDFs are too compressed for print
• Forgetting to order a proof: Always order a physical proof copy before approving your paperback for sale
• Identical ebook and print files: Formatting that works in print (fixed fonts, specific spacing) often breaks on Kindle

When to Hire a Professional Formatter

If your book has complex elements — charts, tables, sidebars, multiple columns, or heavy image use — professional formatting is worth every dollar. A formatting error that causes a misaligned table or broken image ruins the reading experience for every buyer.

At Hafiz Publications, formatting is part of our complete publishing service. We handle both the ebook and print versions, ensure compliance with all KDP and IngramSpark specifications, and do a final quality check before submission. Learn more about how we handle the complete KDP publishing process.