With LiveCycle Designer you can create interactive PDF forms. Interactive PDF forms are useful for gathering information from recipients who want to complete and submit the form online, as well as print a copy of the form.
Below is a link to a comprehensive tutorial written by Samartha Vashishtha, which explains how to create and distribute an interactive form. This tutorial discusses how to create the form, key consideration to keep in mind while creating the form, how to distribute the form, how to manage responses, and how to use scripting for conditional fields.
The tutorial also includes a link to a sample form, which you can view as you follow along.
For more information, see http://ewh.ieee.org/soc/pcs/index.php?q=node/1879