Specifications
 

  
Specifications

The IDPF's work in standards development occurs within the structure of Working Groups.  The following specifications have been approved by the membership and officially published or are in the official IDPF output process:

 Current Specifications

".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 specification, sample files, implementations etc., we highly recommend you visit the IDPF Standards Forums. Registration and posting is open to the public.

Open Publication Structure (OPS)
Output Working Group Specifications Document Type Release Date
OEBPS WG Open Publication Structure (OPS) 2.0 Specification 09/11/07
  Open Packaging Format (OPF) 2.0 Specification 09/11/07
       

Open Container Format (OCF)
Output Working Group Specifications Document Type Release Date
Unified OEBPS Container Format WG OEBPS Container Format v1.0 Specification 10/27/06
 
Superseded Specifications
 

Open eBook Publication Structure Specification (OEBPS)
Output Working Group Specifications Document Type Release Date
Publication Structure Working Group Open eBook Forum Publication Structure v1.2 Specification 8/27/02
  Open eBook Forum Publication Structure v1.0.1 Specification 06/01
Open eBook Forum Publication Structure v1.0 Specification 09/99

Open eBook Rights Expression Language
Output Working Group Specifications Document Type Release Date
Rights & Rules WG Rights and Rules Coordinated Requirements Doc Specification 4/18/03

Informational Documents

Open eBook Publication Structure Informational Documents
Output Working Group Informational Documents Document Type Release Date
OEBPS Working Group Open Publication Structure (OPS) 2.0 v0.984 Informational 4/16/07
  Open Packaging Format (OPF) 2.0 v0.984 Informational 4/16/07
  Open Publication Structure (OPS) 2.0
Internal Working Draft V0.7		 Informational 12/22/06
  Open Packaging Format (OPF) 2.0
Internal Working Draft V0.7		 Informational 12/22/06
  Use Cases & Requirements for Next Version of the Open eBook Publication Structure (OEBPS) Informational 6/05/06

Open eBook Publication Structure Container Format Informational Documents
Output Working Group Informational Documents Document Type Release Date
Unified OEBPS Container Format WG OEBPS Container Format (OCF) 0.94 Working Draft Specification Informational 6/19/06
  OEBPS Container Format (OCF) 0.6 Working Draft Specification Informational 4/25/06
  Requirements for a Unified OeBPS Container
Format Version 1.0		 Informational 2/22/06

Business Special Interest Group Informational Documents
Output Working Group Informational Documents Document Type Release Date
Business Special Interest Group EDItX Digital Sales Report v1.0 Informational 4/07/03

Accessibility Special Interest Group Informational Documents
Output Working Group Informational Documents Document Type Release Date
Accessibility Special Interest Group The Soundproof Book: Exploration of Rights conflict and Access to Commercial eBooks for People with Disabilities Informational 8/30/02