Thread: Libra Enlarge image
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Old 02-18-2020, 08:31 AM   #3
Quoth
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Posts: 14,249
Karma: 105299897
Join Date: Jun 2017
Location: Ireland
Device: All 4 Kinds: epub eink, Kindle, android eink, NxtPaper
It's automatic with the default settings when you transfer a book.
I disabled the on-the-transfer kepub conversion in the settings as I prefer the more accurate page and font layout/rendering of epub.

I have edited the CSS in some really old ebooks so that images are 2/3rds of screen width.
Assuming an outer default centres the image and something outer has height: auto;
Code:
.figscale {
  width: 1920 px;
  max-width: 67%
}
Then the HTML might be
Code:
<div class="center"><img class="figscale" src="../images/00013.gif" alt="" title=""/>
Also in Calibre, select "tablet" as device in conversion settings to avoid image rescaling. Seems to work best with all my DOCX, mobi and AZW conversions to epub.

Last edited by Quoth; 02-18-2020 at 08:34 AM. Reason: tablet = no rescale.
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