Be careful, your question should be posted in "LiveCycle Reader
Extensions" forum. LiveCycle Data Services doesn't deal with these
features.Nevertheless, to use webService calls from a PDF opened in the
free Adobe Reader, you need to Reader extend your form.You can use
Acrobat Pro to extend it if the PDF will not be used by more than 500
people.If you plan to reach more than 500 people, then you must consider
LiveCycle Reader Extensions. This limitation is explained in the Acrobat
EULA.The final...