Can someone please tell me how to use the Adobe LiveCycle Forms Standard or Pro module to leverage features in Adobe Reader? Do you also need to have the Reader Extensions Module?
The forms data sheet says that it is possible to leverage features in Adobe Reader but does not go on to detail how.
Depends on your deployment pattern. You can just use Reader Extensions if you're publishing forms on a site, if you need to prefill or perform other processing on the template then LiveCycle Forms is needed. If you want to render to HTML5 for tablet support then Forms Pro is needed.