Embedded fonts will be allowed in EPUB3 which is due out soon. This is quote from idpf.org site:
Quote:
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 may have installed fonts that omit characters required for other locales, and Reading Systems may utilize intrinsic fonts or font engines that do not utilize operating system installed fonts. As a result, the text content of a Publication may 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 Publication-specific characters and glyphs can be embedded for proper display.
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This is what an Adobe staff person said about embedding UNICODE glyphs in ADE. It seems they feel the same about Cyrillic fonts:
Quote:
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Full Unicode font support for all glyphs would bloat the Digital Editions download from ~6Mb to around 32 to 40 Mb. This is not something we are anxious to do. We are looking at other mechanisms to download the fonts on demand, but this is fairly low in priority compared to long laundry list of other features we want to do.
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Understandable, but reflective of American arrogance in my opinion.