EPUB Home Page

The IDPF and DAISY

The International Digital Publishing Forum (IDPF) in the USA has accepted the offer from the DAISY Consortium, a founding member of the IDPF registered as an Association in Switzerland, to assist in the maintenance of the IDPF Standards.

Charter for EPUB Standards Maintenance Working Group

What is EPUB, .epub, OPS/OCF & OEB?

.epub is the file extension of an XML format for reflowable digital books and publications.

.epub is composed of three open standards, the Open Publication Structure (OPS), Open Packaging Format (OPF) and Open Container Format (OCF), produced by the IDPF.

EPUB allows publishers to produce and send a single digital publication file through distribution and offers consumers interoperability between software/hardware for unencrypted reflowable digital books and other publications. The Open eBook Publication Structure or OEB, originally produced in 1999, is the precursor to OPS.