EPUB File Format

Details of EPUB File Extension

Developer	IDPF
Category	eBook Files
Format	Zip
Supported platform	Windows, Android, Mac & Linux

What Do You Know About .epub?

EPUB file format is a digital ebook which is an open XML-based format to publish books online. The file format is used widely because it offers a standard digital publication format. Users can access an EPUB file using hardware devices and its supportive programs like Sony Reader.

More about EPUB

It is IDPF (International Digital Publishing Forum) responsible to maintain EPUB in three standards.

Open Publication Structure, best known as OPS to direct the content markup.
Open Packaging Format, known as OPF to tell the structure of the ebook.
Open Container Format also known as OCF, keeping ebooks together in a compress format.

Many ebooks are protected with DRM or Digital Rights Management which don't allow third party to open an ebook. The book can on those devices for which it is authorized to view.

Supportive Programs of EPUB

Windows

File Viewer Plus
Comic Book Reader
MS Edges
Icecream ebook Reader

Mac

Apple Pages
Calibre
Apple Books
Adobe Digital Editions

Linux

Calibre
KDE Okular