This epub 3 file will not load and display correctly.

[riordans]

https://www.dropbox.com/s/ugb0jvrpgvyx5sz/antoniostale.epub
This is how it should it should look

This is how it looks in sumatra

I want to be able to use sumatra to view this epub and others like it

[pcdinh]

SumatraPDF is unable to render tables in epub yet

[AbsolutelyFreeWeb]

Hello, i have the same issue. The epub bacground pictures are not shown. However, it is not a table issue in my case. The images are referred to in the css, where they are given as background images. Also, their sizes need to be honored for correct rendering.

e.g:

#page-img-left { margin-left: 0px; margin-right: 0px; margin-top: 0px; margin-bottom: 0px; background-image: url(../Images/image00037.jpeg); background-size: 960px 960px; width: 960px; height: 960px; }
#page-img-right { margin-left: 0px; margin-right: 0px; left: 960px; margin-top: 0px; margin-bottom: 0px; background-image: url(../Images/image00038.jpeg); background-size: 960px 960px; width: 960px; height: 960px; }

Not sure if I should create a new bug, or it can be handled at the same time. The problem is the same. The background pictures are not shown. Here is how it should look like:

And here is how it shows now:

[GitHubRulesOK]

@kjk the latest daily builds seem to behave oddly with some variants of epub 3.0 the attached file is one of many where the download is ###.epub3 which will not now open in epub UI until renamed to ###.epub but these were generally acceptable to earlier versions of SumatraPDF with the new extension
anna-sewell_black-beauty.zip

[SumatraPeter]

anna-sewell_black-beauty.epub3 gives me the loading error on 3.1.2 as well, whereas anna-sewell_black-beauty.epub works.

Also, I'm guessing the new extension is to indicate possibly significant differences between EPUB versions. I remember testing the EPUB3 given above back in 2017 and of course it did fail in Sumatra 3.1.2 (don't recall how the then latest MuPDF behaved, but I think it worked in Edge. . . not sure). Simply changing its extension from EPUB3 to EPUB might enable Sumatra to display the EPUB 2.x compatible sections, but of course that won't make it magically EPUB 3.x capable.

[GitHubRulesOK]

@SumatraPeter As usual you are correct, retesting a call to 3.1.2 the action has not changed,that is calling SumatraPDF filename.epub3 using

EbookUI [
	...
	UseFixedPageUI = true

Opens the file (in a 2.0 compatible way) whereas

EbookUI [
	...
	UseFixedPageUI = false

Raises an error message in both 3.1.2 and current builds

[GitHubRulesOK]

closing as without any samples other than a working one with unconventional file extension there is no longer a fixable issue !

similar/related sample of problem with enhanced epub DRM in open issue #1293