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The conformance checker for EPUB publications

Results 194 epubcheck issues
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Spawned from this [review comment]( https://github.com/w3c/epubcheck/pull/927#discussion_r247329596): > It's actually a problem all over with attribute tests. XML processors will normalize whitespace in attributes, but there are lots of tests where...

type: improvement
priority: low
status: accepted
spec: all

Considering the high cost of starting and closing the JVM, it would be convenient that epubcheck accepted multiple EPUBs in its input. I bet that, right now, a disproportionate amount...

type: improvement

_From [[email protected]](https://code.google.com/u/[email protected]/) on May 07, 2012 16:43:07_ PROBLEM: In toc.ncx, when a TOC section scope (src attribute) is not included in the parent, there is no epubcheck warning or error....

type: feature
priority: low
status: accepted

_From [[email protected]](https://code.google.com/u/[email protected]/) on March 25, 2012 22:34:13_ Currently, the only OCF validation done is checking it's a conforming OCF abstract container, the requirements on the mimetype file hold, and that...

type: feature
priority: low
status: accepted
spec: all

Coming from #274: > XHTML 1.1, on the other hand, does require a doctype: > > There MUST be a DOCTYPE declaration in the document prior to the root element....

type: improvement
priority: low
status: accepted
spec: EPUB 2.x

EPUBCheck does contain a CSS parser, but it is not entirely conforming to the [CSS Syntax Module](https://drafts.csswg.org/css-syntax/#parse-rule). The code should be reviewed, and possibly updated to align with the latest...

type: improvement
priority: low
status: accepted

_From [[email protected]](https://code.google.com/u/106880803105210833503/) on September 10, 2013 03:33:43_ PROBLEM: The attached invalid_media_type.epub file fails epubcheck. Specifically, in its content.opf file, the definitions for the .otf fonts have the incorrect media-type. They...

type: improvement
priority: low
status: accepted

Does epubcheck support ZIP64 archives (for EPUBs > 4 GB in size)? I ran a test on a ~14 GB EPUB compressed as what I believe is a valid ZIP64...

status: waiting for feedback
priority: low

Tested in opf and html files: Passes validation: ``` ```

type: improvement
priority: low

Several people belong to both lists, but still it may be easier to communicate about translation contributions, and possibly to handle license/copyright history. Side question: how to easily get a...

priority: low
type: maintenance
status: accepted