Validating EPUB2 and EPUB3 files

- If you remember from my workflow video…earlier in this course,…you should occasionally be running…your EPUB through a validation checker.…Just to make sure that all of the internal code…and structure is healthy and conformes…to the IDPF specifications.…Those are the ones that are listed right here…in EPUB publications 3.0.1.…That's the current standard for EPUB three.…And you can find them at idpf.org.…Now, you could expand your EPUB…and take a look at every line of code…and make sure that it's strict legal…according to the settings here.…

Or you could use a wonderful validation utility…that incorporates all this…and can check your EPUBs on the fly…and tell you if there are any errors.…Now the core source for this…kind of validation checker is called EPUB Check.…And it's available on GitHub which is a geeky…little site to post code.…It's not really an application here,…it's for people to include in their own applications.…But I just want to tell you that this is the source…and if you're looking at a validator…it should say that it is incorporating…