EPUB3 First Look

EPUB3: First Look
Bill McCoy
CEO, WebPaper
Secretary, IDPF EPUB Working Group

EPUB: The Good
Fills critical role in the ecosystem as the publication-level interchange and delivery format standard
Based on Web Standards ( “shrink-wrapped” XHTML)
Portable Document Format, not Paginated Document Format
Collaboratively developed, fully open standard
IDPF includes publishers, vendors, libraries, accessibility community
Rapid adoption by the publishing industry since 2007
Adobe, Sony, AAP, UK PA, Barnes&Noble, Google, Apple, …

EPUB: The Bad
Format is a bit “heavy”
HelloWorld.epub= 4 files zipped in a Byzantine manner)
Under-specified content & Reading System conformance requirements
Test suites lacking and lagging
Incomplete support by authoring tools and Reading Systems
Browser-based Reading Systems were not top of mind
Missing important features
Interactivity, video, audio, annotations, cross-document linking, vertical writing, audio sync, dictionaries, complex page layouts, mathematics

EPUB3: Next Major Revision to Standard
IDPF Working Group chartered in May 2010
Second F2F meeting Oct 18-20 in San Francisco
45 attendees
Global representation (Japan, China, Taiwan, …)
Browser-based Reading System issues front & center
Several WG members here at BiB
Markus Gylling, Chairman EPUB WG

EPUB3: Rich Media Enhancements
Video & audio support
Declarative event triggers (custom controls w/out JavaScript)
Audio can be synchronized with text
SMIL & CSS Speech subsets
Embedded font support a conformance requirement
OpenType / WOFF
Improved SVG integration

EPUB3: General Enhancements
Core content based on HTML5 subset
Full HTML5 can be used for scripting-enabled content
Enhanced global language and styling support
Writing modes inc. vertical, Ruby
CSS3 Modules: Multi-column, Media Queries, Hyphenation
Improved metadata capabilities
Simple schema for dictionaries & glossaries
MathML support
+ Tighter specification and conformance requirements

EPUB3: There’s More!
Two items still under discussion
Extension mechanism for script-based support of new content types
Require Reading Systems to support specific video codec(s)
Two areas will progress in parallel with the rest of EPUB3
Annotations / cross-document linking
CSS-based page templates

EPUB3: Schedule
November 12 – First Internal Working Draft
December 15 – Second Internal Working Draft
January 29– First Working Draft (complete, stable)
May 15, 2011 – Final Recommendation submitted to IDPF Board for member approval process

EPUB3: Getting Involved
Stay connected via the Working Group site/list
http://code.google.com/p/epub-revision
Help us finish the spec!
Implement early support for EPUB3 in your solution
Become an IDPF member
Questions?
bmccoy@webpaper.net

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EPUB3 First Look

by whmccoy

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