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Old 08-28-2020, 08:43 AM   #52
Quoth
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Posts: 14,886
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Join Date: Jun 2017
Location: Ireland
Device: All 4 Kinds: epub eink, Kindle, android eink, NxtPaper
Quote:
Originally Posted by rashkae View Post
Well, okay, I didn't measure anything to the mm, so don't crucify me with "Correctly".. but you can eyeball a test if you compare an oder, low DPI Device and a new 300DPI device, with a 1 inch indent.

Both Epub and Kepub will indent something that looks like 1 inch on the Low DPI device. On the High DPI device, the epub will still indent about 1 inch, but the Kepub indent will look like half that.


It's been my guess that the distance to pixels is hard coded in the Kepub renderer, and was calculated back when readers for 168DPI (or whatever the DPI was back then.)
I found that indents in em are correct on kepub and epub, but indents in pt are correct on EVERY epub ereader I tried and conversion to mobi and KF8, and correct on kobo epub but wrong on kepub.

I know that em is the preferred web way and ebooks use CSS & HTML. But the convention is that 12pt = 1em and not a physical distance. Also any wordprocessor I've looked at doesn't do em. So very many ebooks would need the pt size on margins and particularly indents converted from pt to em.

Since no-one apart from Kobo seems to use the kepub format, I read everything on a Kobo in epub. Then it looks more or less the same as any decent app on the phone, the Sony and on the Kindle as KF8.
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