pdfsage

3 ms·

1. 1.▲
   by pdfsage 6y ago

   It most certainly is! ISO 32000-1 (PDF 1.7) and ISO 32000-2 (PDF 2.0) are both compliant with PDF/UA (ISO 14289) - the standard for PDF accessibility
2. 2.▲
   by pdfsage 14y ago

   That's because Google Books made a decision to use a feature of PDF (JPEG2000 image compression) that is better suited for higher powered devices. They could just as easily chose JPEG or Flate if they wanted. Don't blame the format - blame
3. 3.▲
   by pdfsage 14y ago

   HTML/EPUB as the format for eBooks open you up to every single one of those problems - and more! HTML/EPUB supports forms, scripting (try to find a web page w/o any JS), audio, video, 3D and more.