ePub 1 (2007)
As a replacement for the Open eBook format, the first
iteration aimed to create a standard format for digital books in a simple XML-based format ensuring consistency across
devices.
ePub 2 (2007)
Released concurrently with ePub1, this version became
more popular because it supported more CSS, metadata, and font embedding. However, it was still limited in terms of
interactivity and multimedia.
ePUB3 (2011)
A significant upgrade built on modern web standards, allowing for richer layouts and design, this version supported audio, video, and scripted interactivity.
Further stages:
- ePub 3.0: Supports 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.