ePub 1 (2007)
As a replacement for the Open eBook format, ePUB's first
iteration aimed to create a standard format for digital books that publishers
could adopt. It was a simple XML-based format ensuring consistency across
devices.
ePub 2 (2007)
Released concurrently with ePUB 1, this version became
more popular. It supported more CSS, metadata, and font embedding, making it a
choice for many publishers. However, it was still limited in terms of
interactivity and multimedia.
ePUB3 (2011)
This was a significant upgrade. The format started
supporting audio, video, and scripted interactivity. It was built on modern web
standards, allowing for richer layouts and design. ePUB3 was divided into:
- ePub 3.0: Introduction of HTML5
and CSS3 support.
- ePub 3.0.1 (2014): Minor
revisions and alignment with the International Digital Publishing Forum (IDPF)
and World Wide Web Consortium (W3C) standards.
- ePUB 3.1 (2017: Streamlined
the specification by removing certain features, making it cleaner and more
efficient.
1.Social Responsibility It's the ethical thing to do. In a digital age,
ensuring no one is left behind due to accessibility issues is a responsibility
of content creators and distributors.
2. Improved User Experience Accessible ePUB3 offers features like
text-to-speech, alternative text for images, and enhanced navigation, which can
benefit all readers, not just those with disabilities.
3. Competitive Edge As consumers become more aware, there's a preference
for brands and publishers who prioritize inclusivity. Adopting accessible
formats can offer a competitive advantage in the market.