For a LiveCycle Reader Extensions ES2 trial credentials, go to the LiveCycle Developer Center Download page: http://www.adobe.com/devnet/livecycle/downloads.html.
There you will find a complete list of all the free tools, plugins & software downloads related to LiveCycle ES2 listed. The following sample demonstrates how to dynamically apply reader extensions to a PDF: http://help.adobe.com/en_US/livecycle/9.0/samples/ServiceUsageSampleReaderExtensionsDynami callyApplyRights.html
thank you very much man,
I got the file