EPUB is a free and open electronic book standard by the International Digital Publishing Forum (IDPF). It was designed for reflowable content, meaning that the text display can be optimized for the particular display device used by the reader of the EPUB-formatted book.
EPUB file displayed in the Archive Browser view
Here you can edit, delete and add files that compose the EPUB structure. To check that the
EPUB file you are currently working is valid, invoke the Validate and Check for
Completeness action. To perform the operation,
Oxygen XML Developer plugin
uses the open-source
EpubCheck validator which detects many types of errors, including OCF container
structure, OPF and OPS mark-up, as well as internal reference consistency. All errors found
during validation are displayed in a separate tab in the Errors view.