Epub Validation
Before an ebook reaches a reader, it has to work—not just look polished on the page, but open properly, navigate cleanly, and behave across different reading apps. That’s where epub validation comes in. Today, we’re looking at what validation checks, how to use it in a publishing workflow, and why a “passed” result is important but not the whole story.
First, what does epub validation actually mean? An EPUB file is a package of content, images, stylesheets, navigation information, and metadata. Validation checks whether that package follows the EPUB specification and whether its components…
The skinny
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