KOReader's Handling of Indents and Margins

Rand Brittain · 03-06-2023, 05:08 PM

I've noticed some issues with ePubs that display differently in KOReader than they do in Calibre or Sigil. I wanted to see what other people's experiences were to confirm where the difference arises before filing a bug report (if it is a bug), since my searches didn't turn anything in particular up.

It seems like a lot of ePubs render differently on my devices in KOReader than they do in desktop editing programs or other readers. In particular, it seems like KOReader defaults to indenting a paragraph if the stylesheet doesn't specifically call for "text-indent: 0" for that style, in places where Calibre defaults to no-indent.

Similarly, a lot of paragraphs or blocks seem to default to having no margin if a margin isn't specified, where other programs would default to a small one.

I don't think I have any tweaks set up in KOReader that would cause this behavior (although there are a lot of settings so I could very possibly be wrong). Is KOReader rendering the ePub incorrectly, or is Calibre? Which one is following the spec? Or is there just a default I need to change?

pazos · 03-06-2023, 07:51 PM

https://www.mobileread.com/forums/sh...53&postcount=9

Rand Brittain · 03-08-2023, 09:57 PM

Huh, that works. Surprised that "auto" didn't default to that for an EPUB3, but I'm sure there must be some reason for that.

pazos · 03-09-2023, 07:00 AM

Quote:

Originally Posted by Rand Brittain

Huh, that works. Surprised that "auto" didn't default to that for an EPUB3, but I'm sure there must be some reason for that.

The links in the link provide info about why we use "epub.css" for epubs instead of "html5.css".

There's nothing epub3 specific in that. So, as the links say, if you read epubs from publishers that assume their books will only be read on web browser engines you're fine setting the default style to html5.

The epub version doesn't matter.

03-06-2023, 05:08 PM	#1
Rand Brittain Bookmaker Posts: 427 Karma: 2143650 Join Date: Sep 2010 Device: Cybook Opus	KOReader's Handling of Indents and Margins I've noticed some issues with ePubs that display differently in KOReader than they do in Calibre or Sigil. I wanted to see what other people's experiences were to confirm where the difference arises before filing a bug report (if it is a bug), since my searches didn't turn anything in particular up. It seems like a lot of ePubs render differently on my devices in KOReader than they do in desktop editing programs or other readers. In particular, it seems like KOReader defaults to indenting a paragraph if the stylesheet doesn't specifically call for "text-indent: 0" for that style, in places where Calibre defaults to no-indent. Similarly, a lot of paragraphs or blocks seem to default to having no margin if a margin isn't specified, where other programs would default to a small one. I don't think I have any tweaks set up in KOReader that would cause this behavior (although there are a lot of settings so I could very possibly be wrong). Is KOReader rendering the ePub incorrectly, or is Calibre? Which one is following the spec? Or is there just a default I need to change?

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03-06-2023, 07:51 PM	#2
pazos cosiñeiro Posts: 1,406 Karma: 2451781 Join Date: Apr 2014 Device: BQ Cervantes 4	https://www.mobileread.com/forums/sh...53&postcount=9

03-08-2023, 09:57 PM	#3
Rand Brittain Bookmaker Posts: 427 Karma: 2143650 Join Date: Sep 2010 Device: Cybook Opus	Huh, that works. Surprised that "auto" didn't default to that for an EPUB3, but I'm sure there must be some reason for that.

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