: Re: How can I optimize an epub file? How can I optimize an epub file, in order, but not limited to: limit the chances of compatibility issues? make it faster to load and to be processed from

@Marsha

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The EPUB 3 specification1 suggests including embedded fonts for compatibility:

3.4 Fonts
EPUB 3 does not require that Reading Systems come with any particular
set of built-in system fonts. As occurs in Web contexts, Users in a
particular locale might have installed fonts that omit characters
required for other locales, and Reading Systems might utilize
intrinsic fonts or font engines that do not utilize operating system
installed fonts. As a result, the text content of an EPUB Publication
might not natively render as intended on all Reading Systems.
To address this problem, EPUB 3 supports the embedding of fonts to
facilitate the rendering of text content, and this practice is
recommended in order to ensure content is rendered as intended.
Support for embedded fonts also ensures that characters and glyphs
unique to an EPUB Publication can be embedded for proper display.

1Epub 3 Overview - Draft Specification 8 November 2013

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