KDP Print vs Ebook: Formatting Differences Every Author Should Know

A book published on Amazon KDP can exist in two fundamentally different formats: a Kindle ebook and a print paperback (or hardcover). Despite starting from the same manuscript, the formatting requirements for the two versions are different enough that they're essentially separate products in terms of how they're prepared.

Understanding what's different, and why, helps you prepare both versions correctly without guessing, and helps you choose formatting tools and workflows that handle both efficiently.

The core difference: reflowable vs. fixed layout

This is the single most important conceptual difference between ebook and print formatting.

Ebooks are reflowable: the text in a Kindle ebook can be resized by the reader, and the content flows to fill whatever screen size and font size the reader has chosen. A reader on a phone who increases the font size to large will see fewer words per line and more pages than a reader on a tablet at the default font size. The ebook file doesn't define where line breaks or page breaks occur; those are determined at reading time.

Print books are fixed layout: a print book is physically set at one trim size and one font size. Page 2 of the print book is always page 2, with specific words on specific lines. Every detail of the layout is frozen when the PDF is created.

This fundamental difference explains almost every specific formatting difference between the two formats.

File format requirements

Element	Kindle ebook	Print paperback
Primary file type	EPUB (recommended)	PDF
KDP also accepts	DOCX, HTML, MOBI	Not applicable (PDF only for interior)
File size limits	650 MB after conversion	400 MB
Why that type	Reflowable format; structure defined by headings and HTML	Fixed layout; every page position must be specified

For ebooks, EPUB is the current standard. It's a structured format based on HTML and CSS, where headings define chapters and fonts, margins, and paragraph spacing can be set as defaults that readers can adjust. For print, the PDF encodes every page exactly as it will be printed.

Margins and whitespace

Ebooks: margins in an ebook don't exist in the way they do for print. Ebook readers have their own margin settings that users can adjust. You can specify default margins in the CSS of your EPUB, but readers with accessibility needs may override them. Most formatting tools set sensible defaults.

Print: margins are fixed and critical. The inner margin (gutter) must be larger than the outer margins to account for the binding, and the size depends on your page count. Too small a gutter, and text disappears into the spine; too large, and your effective text area shrinks. See our KDP formatting checklist for gutter minimums by page count.

Outer margins, top margins, and bottom margins all need to be large enough that text isn't at risk of being cut during the printing and trimming process.

Typography: fonts, sizes, and spacing

Ebooks: font choice in ebooks is advisory rather than fixed. You can specify a default font in your EPUB's CSS, but most Kindle readers allow readers to switch to their preferred font. Many readers use the Kindle app's "Publisher Font" option to see your specified font if it's embedded, but reader preferences vary. Kindle apps support several default font options regardless of what you specify.

Font size in ebooks is set by the reader, not the file. This is a feature (accessibility) but it means you can't control exactly how the text looks across all reading contexts.

Print: font choice, size, and spacing are all yours to control and are fixed in the PDF. For print, these decisions matter because the font's x-height, weight, and spacing affect readability at the printed size and influence the final page count (which affects cover spine width and printing cost).

Common choices:

• Fiction body text: 10 to 11 pt for most trim sizes
• Nonfiction body text: 11 to 12 pt for readability
• Line spacing: 1.1 to 1.3× the font size is typical for books

Images and visual elements

Ebooks: images in Kindle ebooks appear inline in the reflowing text. Because the text reflows, images can change their position relative to nearby text depending on the reader's font size. For text-heavy books, this usually isn't an issue (images go where you place them and stay there relative to surrounding text). For books with many figures or tightly integrated image-text layouts, ebook formatting is more challenging.

Image resolution for ebooks: Kindle readers display at varying resolutions. A minimum of 300 DPI for images embedded in the EPUB is recommended for quality on retina displays.

Print: image placement in print is fixed. An image that "bleeds" to the edge of the page needs a 0.125-inch bleed. Images must be at 300 DPI minimum (400 DPI recommended for sharper results). Grayscale images (for black- and-white interiors) should be converted to grayscale explicitly rather than left in RGB or CMYK color mode, since black-and-white printing handles grayscale images more predictably.

Tables

Ebooks: tables in reflowable ebooks are one of the most challenging formatting elements. On a small phone screen at a large font size, a table with several columns may not fit without horizontal scrolling, or may be rendered in a way the reader can't navigate easily. If your book contains essential tables, consider whether they can be reformatted as prose or simple lists for the ebook version, or whether a fixed-layout ebook (which preserves the table as an image) might be appropriate.

Print: tables in print work as expected. Ensure your column widths fit within your text area with adequate spacing, and that table rules (lines) are visible at the print size. Multi-page tables need continued-header rows to tell readers on later pages what each column contains.

Table of contents behavior

Ebooks: the TOC in a Kindle ebook is navigable. Readers tap a chapter title in the TOC to jump to that chapter. Amazon requires a valid, navigable TOC in the EPUB's structure (an NCX or NAV file). Most formatting tools generate this automatically. Amazon also displays a separate "Table of Contents" entry in Kindle's navigation menu, which typically links to your HTML TOC page.

Print: the TOC in a print book is a static list with page numbers. These page numbers are only accurate if generated after the final layout is complete and the page count is finalized. If you make significant edits to the print interior after generating the TOC, page numbers may shift and the TOC may need to be regenerated.

Front matter and header/footer behavior

Ebooks: headers and footers (like "Chapter 1" running headers and page numbers) don't exist in reflowable ebooks, because pages don't exist as fixed entities. Kindle devices have their own location indicators (percentage read, reading time remaining). Avoid including running headers and page numbers in your ebook file.

Print: running headers (typically the book title on even pages and the chapter title on odd pages) and page numbers are standard in print books. They should be absent from the title page, copyright page, blank pages, and often the first page of each chapter (where a chapter opener design may take precedence). Most formatting tools handle this automatically based on your design settings.

How to prepare both versions from one manuscript

The most efficient approach is to work from a single, well-structured manuscript and generate both formats from it:

1. Structure your manuscript with headings: use heading styles (Heading 1 for chapter titles, Heading 2 for sections) consistently. These drive both the ebook's TOC generation and the print PDF's chapter break detection.
2. Use a formatting tool that handles both: tools like LiberScript generate EPUB and print PDF from the same project, applying ebook-appropriate styles to the EPUB and print-appropriate margins, headers, and page numbers to the PDF, without requiring separate manuscripts or manual reformatting.
3. Handle ebook-problematic elements separately if needed: if your book contains tables that won't render well in reflowable format, consider creating an ebook-specific version of those elements (simplified lists, images of the tables, or a different presentation).
4. Final page count from the print PDF drives cover design: once both files are generated and your print interior is approved, use the final print page count to design your cover with the correct spine width.

Color vs. black and white interiors

For print books specifically, there's an additional format dimension: whether the interior is printed in black and white or full color.

Black-and-white interiors: the standard for most fiction and text-heavy nonfiction. B&W printing is less expensive per page, which affects both your printing cost and your royalty calculation. Images in a B&W interior are rendered in grayscale; colorful photographs or charts may look muddy or lose important visual distinction when converted.

Full-color interiors: required for children's books, cookbooks with photography, illustrated nonfiction, and any book where accurate color rendering is important. Color interiors cost significantly more to print and increase the minimum list price needed to remain eligible for KDP's 60% royalty rate on print.

For ebooks, this distinction doesn't apply; Kindle apps display images in color on color screens, and readers on e-ink displays with grayscale screens will see the color images rendered in grayscale.

If your book is text-only: choose B&W interior for print. Your printing costs will be lower and your royalty per copy will be higher.

If your book has important color elements: consider whether a workaround exists (captions describing color relationships, simplified black-and-white versions of diagrams) before committing to a full-color print interior. The price increase required to maintain royalty eligibility with a color interior can make your print book less competitive on price.

Device testing for ebooks

The ebook formatting advice in this guide describes what standards and tools support. But formatting decisions have real consequences on real devices, and those consequences are best confirmed by testing on actual hardware.

The major Kindle reading contexts to test on:

Kindle e-ink devices: Kindle Paperwhite, Kindle Scribe, and standard Kindle display e-ink screens in grayscale. These render fonts at fixed, device-set sizes, have no backlight that shifts color temperature, and show images in grayscale. An ebook that looks clean and balanced on a tablet app may have visible spacing issues or poor image quality on an e-ink screen.

Kindle app on a phone: the smallest common reading context. Readers on phones often increase font size significantly. A long paragraph that fits comfortably at the default font size may span many more lines at a large size, making chapter transitions feel further apart. Tables are particularly problematic here.

Kindle app on a tablet (iPad or Android): larger screen, often used at lower font sizes. The higher resolution makes image quality issues visible that might be masked at lower resolutions.

Kindle Cloud Reader: browser-based reading. Useful for seeing the ebook in a controlled environment you can access on any computer.

Amazon's Kindle Previewer desktop application simulates multiple device types in one interface. Download and run your EPUB through Kindle Previewer before uploading to catch layout issues across device contexts without needing the physical hardware.

Syncing revisions across print and ebook

Updating your book after publication requires updating both format files. If you fix a typo in the manuscript, you need to export a new EPUB (for ebook), a new print PDF (for print), and upload both to KDP. Forgetting to update both means one version has the fix and the other doesn't.

Some formatting tools make this less error-prone by keeping the print and ebook exports linked to the same source project. When you update the manuscript in LiberScript and re-export, both the EPUB and print PDF files are regenerated from the same updated source. This is one of the main workflow advantages of using a book-specific formatting tool rather than managing separate files in a general-purpose document editor.

Keep a note of which version of your files is currently live on which platform. A simple naming convention for your exported files (e.g., book-title-epub-v1.2.epub, book-title-print-v1.2.pdf) makes it clear which file matches which upload without having to open them.

Frequently asked questions

Do I need to create two completely separate manuscripts for print and ebook?

No, and you shouldn't. A single well-structured manuscript handled by a good formatting tool should produce both versions. The formatting tool applies the appropriate styling for each format during export. Maintaining two separate manuscripts creates duplication and doubles the work when you update the book.

Should the font in my ebook match the print book?

You can embed a font in your EPUB and specify it as the default, but most Kindle readers will see their preferred reading font regardless, unless they've enabled "Publisher Font" in the Kindle app. For print, your font choice is fixed and should be chosen for readability at your chosen body text size.

Can my ebook and print book have different content?

Technically yes, but it's generally not a good idea for the main content. Different versions of the same book can confuse readers and makes updating the book more complex. The most common legitimate difference is ebook- specific back matter (links to other books, email signup CTA) versus print back matter (QR codes, plainer contact info), and slight adjustments to tables or complex layouts that don't work identically in both formats.

What's the easiest way to check whether my ebook looks right before uploading?

Download the Kindle Previewer application from Amazon, or use KDP's online previewer after uploading (before approving for publication). Check the ebook on multiple device types: phone, tablet, and the standard Kindle e-ink reader, since reflowable content renders differently across screen sizes.

Choosing a trim size for print

Trim size is the physical dimensions of your printed book (width × height). The choice affects page count, gutter requirements, and, if you're also selling the ebook, how closely the print and ebook reading experiences feel comparable in terms of page length (though this matters less than many authors think).

Common trim sizes on KDP Print:

Trim size	Common use
5 × 8 inches	Literary fiction, some romance, smaller nonfiction
5.25 × 8 inches	Trade fiction, common general-purpose size
5.5 × 8.5 inches	Popular nonfiction, self-help, common trade size
6 × 9 inches	Most common nonfiction size; also used for fantasy/sci-fi paperback
8.5 × 11 inches	Workbooks, textbooks, large-format guides

For a standard novel or narrative nonfiction book, 5.5 × 8.5 or 6 × 9 are the most practical choices; they match what most readers expect to hold, match distributor expectations for genre fiction and nonfiction, and result in page counts that don't produce unusually thin or thick spines for most manuscript lengths.

The trim size decision has no effect on your ebook.

The bottom line

Print and ebook formatting serve the same manuscript but achieve the result through fundamentally different technical approaches: ebooks are reflowable and reader-adjustable, while print PDFs are fixed and precise. Working from a single manuscript with a tool that handles both formats is the most efficient approach.

Our KDP formatting checklist covers the specific technical requirements for both file types. If you're ready to format your manuscript, get started in LiberScript, which generates both EPUB and print PDF from the same project.