EPUB 3: The future of digital publications
The first two parts of this three-part series covered the enduring need for portable documents and why PDF’s fundamental architecture is too dated and too limited to fill this need. In this final part, we’ll take a look at EPUB, the format that has rapidly emerged as the open standard for eBooks. It’s my contention that EPUB, not PDF, represents the future of portable documents in our increasingly Web-based world. Why? In short, EPUB addresses all the key limitations of PDF. EPUB is reflowable, accessible, modular (with packaging and content cleanly separated), and based on HTML5 and related Web Standards. It’s a truly open format, developed in a collaborative process to meet global requirements rather than by a single vendor to support its proprietary products. Let’s take a harder look at these points.
Why PDF is not the future of portable documents
Part 1 of this three-part series argued that there will be an enduring need for portable documents even in a world that’s evolving towards cloud-based content distribution and storage. OK fine, but we have PDF: aren’t we done? The blog post from from Jani Patokallio that inspired this series suggested that “for your regular linear fiction novel, or even readable tomes of non-fiction, a no-frills PDF does the job just fine”. In this second part I take a hard look at PDF’s shortcomings as a generalized portable document format. These limitations inspired EPUB in the first place and are in my opinion fatal handicaps in the post-paper era. Is it crazy to imagine that a format as widely-adopted as PDF could be relegated to legacy status? Read on and let me know what you think.
What role does EPUB play in the cloud-centric world?
Having been involved for over two decades with the intersection of technology and publishing, I’m looking forward to being an occasional writer for the TOC blog. At Joe Wikert’s invitation, I’m starting out with my personal vision for the future of portable documents and the Web, including the relationship between EPUB 3, HTML5 and PDF. This post is the first in a three-part series. Part two can be found here and part three here.
What’s up with HTML5 and EPUB 3? (and, is EPUB even important in an increasingly cloud-centric world?)
EPUB is the well-known open standard XML-based format for eBooks and other digital publications, based on HTML and CSS. EPUB is the primary distribution format for B&N Nook, Kobo, Apple iBooks, Sony Reader, and many other eBook platforms, and is supported by Amazon as an ingestion format for Kindle (whose distribution format is proprietary).