As usual, upgrade calibre to the latest version. Now it is v0.9.4.
Major new feature:
Conversion: Add an option to embed a font family into the book. [0.9.4]

The embedded font is used as the base font for all text that does not specify its own font family in the input document. Works only with output formats that support font embedding, principally EPUB/AZW3. Option is found under Look & Feel in the conversion dialog. You can ensure that the font is used for all text, regardless of the input document’s styles by filtering out font family styles via the Filter Style Information option in the Conversion dialog.

Bug Fixes
Windows: Check if any of the files of a book are in use before changing the title/author, this prevents the creation of duplicate files if one of the files is open in another program
Kobo driver: Fix the ondevice status for some books getting lost.
Closes tickets: 1069403
Catalogs: Fix regression that broke use of prefix rules.
Closes tickets: 1070086
Tag Browser: Fix sorting incorrect for accented letters
Closes tickets: 1069835
Make the bundled Liberation fonts available on all platforms for embedding
Use mimetype for fonts from the EPUB 3 specification
Get Books: Handle website change that broke the SONY Store plugin
Generate cover: If the default font cannot render characters in the metadata (for example for east asian languages) try to automatically find a font on the system that is capable of rendering the characters
Fix regression that broke certain types of CSS selectors.
Closes tickets: 1068937
Use font-weight:bold instead of font-weight:bolder for the and tags as ADE cant handle bolder when embedded fonts are used
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David Yin

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