Reflowable books have dynamic layouts that change in appearance based on your device and settings. For example, readers can change the font size and style, margins, spacing, background color, and more. 

Here’s an example of how a reflowable book (opened in iBooks) adapts to different device settings and window sizes: 

Reflowable books are best suited for text-based works. 
Reflowable books can include images, but they don’t support heavy imagery or design elements. Graphic novels, photo books, traditional picture books, and other books where pictures/text should never change are better suited to the fixed-layout format, which Pronoun doesn’t currently support.

 

Reflowable books don’t have set page counts.
Because they adjust to different settings, reflowable books don’t have “pages” in the traditional sense. Instead, they vary in length from device to device and lack fixed page counts. On Pronoun, we estimate your book’s “print length” based on its word count.

Some retailers don’t allow reflowable books to include references to page numbers, since it can create a confusing reader experience. (“Page 9” for one reader may be different from “Page 9” for another reader.) That’s why, if you upload a .docx file on Pronoun, we create a hyperlinked Table of Contents for your book—no page numbers required.

Reflowable books may include hyphenated text.
Readers can change text size, style, spacing, and more. As a result, it isn’t always possible to control where words break. You may sometimes see hyphenated words, but this isn’t built into the file. The look of each page will change depending on the reader’s device and settings.

     

The same title page may or may not include hyphenated text depending on the screen size.