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EPUB3 export improvements in Libreoffice Writer

Estimated read time: 2 minutes

I worked on improving the EPUB3 export filter in LibreOffice recently. First, thanks to Nou&Off in cooperation with a customer who made this work possible. Since the previous blog entry there have been a number of improvements around 4 topics.

The character properties of link text is now handled correctly, in the above example you can see that the text is red, and this comes from a character style.

Improved table support

Previously the support for tables was there just to not loose content, now all kinds cell, row and table properties are handled correctly. A few samples

  • custom cell width:
  • custom row height:
  • row span:

So the table support should be now decent, covering row and column spanning and various cell border properties.

Improved image support

Previously only the simplest as-character anchoring was supported. Now much more cases are handled. Two examples:

  • image borders:
  • image with a caption:

This includes various wrap types (to the extent HTML5 allows representing ODF wrap types).

Font embedding

If the user chooses to embed fonts (via File → Properties → Font → Embed), then the EPUB export now handles this. Here is a custom font that is typically not available:

(The screenshot is from the Calibre ebook reader.)

All this is available in master (towards LibreOffice 6.1), or you can grab a daily build and try it out right now. :-)

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