Thread: Glo Book cover not fullscreen?
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Old 08-11-2016, 06:38 AM   #4
davidfor
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The other thing, is that this is a kepub rather than an epub. The device handles covers for the two types differently. For an epub, the first page is rendered and that is used as the cover. For kepubs, an image in the book is marked as the cover, and this is extracted and used as the cover. It is resized for the various places it is displayed, but the aspect ratio is kept.

What that means is that if you make sure the cover image in the library is the correct aspect ratio, when calibre updates the cover during the conversion or send-to-device, it will put a cover in the book that will fill the screen. I don't really know which of these is the better option.
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