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.
For the latest on IDPF standards, sample files and
companies who have implemented our specifications, please visit
our public forums. Getting
started? Visit our
FAQ's.