Quote:
Originally Posted by Quoth
The kepub is Kobo's proprietary extension to epub2. It has extra <span> stuff </span> in the HTML files. The epub on a Kobo uses Adobe renderer, Adobe Digital Editions (abbreviated ADE). The kepub files use Kobo's own renderer which allows zooming images and popup footnotes but does the text layout differently. Some people prefer kepub and some prefer epub2.
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Minor nit is that kepub is usable with either ePub2 or ePub3 but it's main use was to trigger using the ePub3 renderer (Kobo's ereaders have an RMSDK renderer which supports Adobe's ADEPT DRM and a Webkit based renderer which supports quite a bit more ePub3 features).