With ePub 3 on the horizon, InDesign allows you to include video and audio files, as well as JavaScript for simple animations or popups, and Japanese vertical text. When exporting to ePub 3, the file includes ePub 2 files as well, for backward compatibility.

Oddly, with ePub 3 barely on the brink of acceptance, Adobe has chosen to include its own, proprietary ePub 3 option: ePub 3 with Layout. This format supports multiple columns, text wrap, and adapting layouts across different mobile devices. I don’t think proprietary formats have any place in an open standard such as ePub, but only time will tell.

In previous versions of the Creative Suite, you had to use Adobe Acrobat to add interactive form elements to a PDF file. In InDesign CS6, you can now create most common PDF items, including a text field, radio button, checkbox, combo box (popup menu), or signature field, as well as buttons for printing, submitting a form by email, and clearing the form. InDesign includes several pre-built fully functional buttons with rollover options, or you can convert your own objects into buttons.

You can even include tooltips, set the tab order for form fields, and show and hide form fields based on triggers such as responses to other questions on the form.