Thread: Why are my book covers sometimes so small?
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Old 10-21-2019, 09:33 AM   #17
davidfor
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Quote:
Originally Posted by adamslast View Post
It is related cover page structure. I solved it as I explain below:
Open the book in Calibre -> "Edit Book", choose cover or titlepage (depend the book) page, find the line defining the cover picture like:
<image width="1027" height="1499" xlink:href="cover.jpeg"/>
and add style="height:100%; text-align:center;" text after jpeg". It will be:
<image width="1027" height="1499" xlink:href="cover.jpeg" style="height:100%; text-align:center;"/>
Then save and close Edit Book. The new corrected book's cover will be seen in full size on your Kobo.
That line looks like the image link inside an svg tag. That might have a "preserveAspectRatio" attribute. If so, setting this to "xMidYMid meet" should preserve the aspect ratio and fill the screen.

But, you can try the "Add cover" tool. This will let you select the image in the book and set whether to preserve the aspect ratio. It then generates the cover page code to fill the screen.
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