---
title: "Reflowable vs Fixed-Layout Ebooks"
description: "The difference between reflowable and fixed-layout ebooks, which books need which, what readers lose with fixed layout, and how KDP treats each one."
url: "https://www.superebook.ai/glossary/reflowable-vs-fixed-layout"
updated: "2026-10-20"
---

# Reflowable vs fixed layout

**Definition.** Reflowable and fixed layout are the two ways an ebook can be built. A reflowable ebook lets its text rewrap to the screen and the reader's font settings, so it has no fixed pages; a fixed-layout ebook keeps every page exactly as designed. Text-led books should be reflowable; comics and picture books need fixed layout.

Sources checked October 20, 2026.

## How it works

KDP treats ebooks as reflowable by default, and its test is whether the body text can be separated from the images without losing context or layout. Reflowable books get the reading features: dictionary, adjustable fonts and, where available, X-Ray, text-to-speech and Word Wise. A fixed-layout book is declared in the file's metadata (rendition:layout set to pre-paginated, or fixed-layout set to true), states its original design resolution, and must embed its fonts. The W3C's EPUB overview gives children's books, comics, manga and magazines as the content that needs page-precise layout.

## An example

A cookbook with one photo per recipe can still be reflowable: each photo can sit above its recipe without losing meaning. A picture book whose words are painted into the art can't, because the text loses its place once separated from the image. That book needs fixed layout, and its type has to be large enough to read on a small tablet without zooming.

## Common mistakes

Choosing fixed layout to protect the look of a text-led book: readers lose font control and the reading features, and small screens get small type. Planning to switch later: KDP says moving a book between reflowable and Print Replica means unpublishing and adding it as a new title. And setting body text too small in fixed layout, where KDP gives minimum letter heights for a 7-inch tablet.

## Questions

**Is a PDF a fixed-layout ebook?** It behaves like one, since every page is fixed, but a fixed-layout ebook is a specific EPUB or Kindle format declared in the file's metadata. Kindle stores sell fixed-layout and Print Replica books, not uploaded PDFs as such.

**Which should a nonfiction guide use?** Reflowable, unless its pages only make sense as designed spreads. Text, headings, lists and simple images all reflow well, and readers keep control of the font size.

## Sources

- [KDP: Creating Reflowable Books](https://kdp.amazon.com/en_US/help/topic/GPNJPYK298J8TRRV): Ebooks reflowable by default, the separation test, the features reflowable books support, comics in fixed layout.
- [KDP: Creating Fixed-Layout Books Without Pop-Ups](https://kdp.amazon.com/en_US/help/topic/GEGU359TQLKDJZZH): Fixed-layout metadata, original resolution, embedded fonts and minimum letter heights on a 7-inch tablet.
- [KDP: What file formats are supported for eBook manuscripts?](https://kdp.amazon.com/en_US/help/topic/G200634390): Switching between reflowable and Print Replica means unpublishing and creating a new title.
- [W3C: EPUB 3 Overview](https://www.w3.org/TR/epub-overview-33/): Reflowable layout as EPUB's core; fixed layouts for children's books, comics, manga and magazines.

## Related terms

- [EPUB](https://www.superebook.ai/glossary/epub.md)
- [Front matter](https://www.superebook.ai/glossary/front-matter.md)
- [KDP (Kindle Direct Publishing)](https://www.superebook.ai/glossary/kdp.md)

## Read next

- [How to format an ebook for Kindle](https://www.superebook.ai/guides/how-to-format-an-ebook-for-kindle.md)
- [PDF, EPUB or DOCX: which file to send](https://www.superebook.ai/blog/pdf-epub-docx.md)
- [Kindle ebook cover size and requirements](https://www.superebook.ai/guides/kindle-ebook-cover-size.md)
- [All glossary terms](https://www.superebook.ai/glossary.md)