EPUB

EPUB (in version 3.3 as of 2023-12-21) is a container for ebooks using ZIP for its archive and compression. Most of the content is XHTML or media (usually graphics).

Contents

• There must be a file mimetype in the toplevel containing the string application/epub+zip
• There must be a directory META-INF in the toplevel containing:
  • container.xml specifies one or more rootfiles, using their locations relative to the toplevel:

<?xml version="1.0"?>
<container xmlns="urn:oasis:names:tc:opendocument:xmlns:container" version="1.0">
 <rootfiles>
  <rootfile full-path="PATHPATHPATH" media-type="application/oebps-package+xml"/>
 </rootfiles>
</container>