Quote:
Originally Posted by Tex2002ans
You should be able to safely stick with 1200px width, so depending on the ratio of your cover:
1.4 = 1200 x 1680
1.5 = 1200 x 1800
1.6 = 1200 x 1920
Newer devices should be more powerful, and 1600px is a "recommended minimum", so:
1.4 = 1600 x 2240
1.5 = 1600 x 2400
1.6 = 1600 x 2560
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My personal preferences are 1500x1000 (3:2) or 1500x1125 (4:3). Larger images tend to give me an epub file where the text takes <300K and the cover image is >500K. I'd rather have the smaller cover image and file size.
If the ebook looks good in ADE and/or RMSDK, with the epub3 renderer on my Kobo and with Kindle Previewer, that's as far as I go. The few times that I wasted hours trying to make an ebook look good on multiple renderers were pretty much exactly that: wasted hours. This renderer doesn't center text unless it is wrapped in a centered div, this one doesn't won't scale the image in a graphic scene break, this one tosses out the CSS embedded in the ebook and uses it's own builtin CSS, this one makes any dropcaps look like crapcaps, etc.