This document is subject to change at any time with the approval of the EPUB Working Group.
The media types defined in this document will not be removed, but may be deprecated.
Requests for additions, modifications and clarifications can be made through the Issue Tracker. Pull requests are also welcome. Note that requests for new Core Media Types need to show that the requested media type has broad support across platforms.
Refer to the IDPF Issue Reporting Guidelines for more information about the change request process.
This document identifies the set of Core Media Types that EPUB 3 Reading Systems support.
The following table lists the EPUB 3 Core Media Types.
The columns in the table represent the following information:
|Media Type||Content Type Definition||Applies to|
||SVG Content Documents [ContentDocs3]||SVG documents|
||XHTML Content Documents [ContentDocs3]||XHTML Content Documents that use the XHTML syntax [HTML].|
||[OPF2]||The superseded NCX.|
||[OpenType] [TrueType]||OpenType and TrueType fonts. Deprecate
||[MediaOverlays3]||EPUB Media Overlay documents|
||[PLS]||Text-to-Speech (TTS) Pronunciation lexicons|
||[AAC LC], [MP4]||AAC LC audio using MP4 container|
|EPUB 3 does not currently define any video codecs as Core Media Types. Refer to the note in EPUB Publications — Reading System Conformance for informative recommendations on support for video codecs in EPUB Publications.|
||CSS Style Sheets [ContentDocs3]||CSS Style Sheets.|
[ContentDocs3] EPUB Content Documents 3.
[MediaOverlays3] EPUB Media Overlays 3.
[OPF2] Open Packaging Format 2.0.1.
[PLS] Pronunciation Lexicon Specification 1.0 (PLS). 14 October 2008.
[PNG] Portable Network Graphics (PNG) Specification (Second Edition). 10 November 2003.
[Packages3] EPUB Packages 3.
[RFC2046] Multipurpose Internet Mail Extensions (MIME) Part Two: Media Types (RFC 2046). November 1996.
[TrueType] Apple TrueType Reference manual. Apple 2002.
[WOFF] WOFF File Format 1.0.
[WOFF2] WOFF File Format 2.0.
[RFC4329] Scripting Media Types. April 2006.