epub
What is a .epub file?
application/epub+zip
EPUB is the open e-book standard, a ZIP archive containing XHTML content documents, CSS, images, and a package manifest describing reading order and metadata. It supports reflowable text that adapts to screen size and is supported by most e-readers except Kindle natively. It is the dominant format for distributable e-books.
How to use a .epub file
Use an example EPUB to test e-book parsing, ZIP-package and manifest handling, reading-order and metadata extraction, and rendering in e-reader applications.
Download example .epub files
- EPUB 3 — Valid E-bookA valid EPUB 3 e-book with a cover image, an EPUB navigation document, styled chapters, and a correctly stored OCF mimetype. Original content, for testing EPUB readers and EPUB→other conversion.
- EPUB — Intentionally Invalid (bad OCF mimetype)An intentionally invalid EPUB: identical to the valid twin except its OCF mimetype entry is compressed and mislabelled as application/zip — a real EPUB spec violation. For testing how readers and validators handle a malformed container. Clearly labelled; harmless content.