Specify the custom property RI_UsageModelDemo=true
at packaging time.
If you are packaging content using the Media Packager command line tool, enter:
java -jar AdobeMediaPackager.jar [<i>source_file</i>] [<i>dest_file</i>] -k RI_UsageModelDemo=true
If you do not activate the optional demo mode at packaging time, the license server issues a license based on the first valid DRM policy it processes.