Documentation/Exporting to EPUB format

Foreword
This description is an excerpt from the "Writer Guide 7.2" [EN], (LibreOffice-Community - from LibreOffice Documentation Team).

Exporting to EPUB format
EPUB format has become popular since mobile devices such as smartphones, tablets, and e-readers appeared on the market.

The EPUB format is implemented as an archive file consisting of HTML files carrying the content, along with images and other supporting files.

Writer can export a file to EPUB.

A text-only document generally exports well, but some contents (such as illustrations, tables, and cross-references) may not export correctly.

Note Other ways to export to EPUB from Writer (.odt) files include Calibre, an open-source e-book manager that runs on Windows, macOS, and Linux. Calibre provides many e-book conversion facilities and allows editing of the result. https://calibre-ebook.com/

Quick export to EPUB


Choose [[Media:202108_Writer EPUB File Export as Export Directly as EPUB menu.png|]] to export the entire document using the EPUB settings you most recently selected on the "EPUB Export" dialog (see Figure 1).

You are asked to enter the file name and location for the EPUB file, but you do not get a chance to select other options.

Controlling export to EPUB
For more control over the content and quality of the resulting EPUB file, use [[Media:202108_Writer EPUB File Export as Export as EPUB menu.png|]].

The "EPUB Export" dialog opens (Figure 1).

The "EPUB Export" dialog has the following fields:

General - Version
Choose the EPUB - "Version" for the exported file.

Values are [[Media:202108_Writer EPUB Export dialog Version.png|EPUB 2.0 and EPUB 3.0]].

Most new e-readers can read EPUB 3.0.

General - Split method
Select the method to start a [[Media:202108_Writer EPUB Export dialog Split method.png|new section]].

Choose "Heading" to start the section on a heading, according to the document's chapter numbering.

Choose "Page break" to start the section on a page break.

General - Layout method


Choose "Reflowable" to have the ebook display change to fit the screen size and the user’s preference (so page size and header/footer content is not exported).

Choose "Fixed" to have the ebook layout remain the same under all conditions.

Customise - Cover image
The path to the image file for the cover page.

If no image is specified, the EPUB file will automatically use any image with a name like cover.gif, cover.jpg, cover.png, or cover.svg.

A custom cover image is embedded in the EPUB file.

Customise - Media directory
The path to the optional directory for the cover image, metadata, and multimedia files.

If you do not specify a directory, the exporter looks for custom media and metadata in the current document directory inside a folder with the same name as the document file name.

Metadata
The basic information for the file that provides tags to help searches.

These fields provide another chance to edit metadata that is picked up by default from in Writer.

Further Informations
LibreOffice 7.2 Help

EPUB - Converting ODF to EPUB - on Wiki.

- on Wikipedia.