Adding permissions to allow users to append pdf at the end of a form

If the users are using Acrobat Professional, a automation script can be written to handle this. Please take a look at the Acrobat JavaScript Reference. The relevant functions are "app.browseForDoc()", "doc.insertPages()", and "doc.importDataObject()"
 
Ideally this form should be usable by users running Acrobat reader 7 or 8 or Acrobat standard. Will users with those products be able to run this scri pt? Can I add special permissions to the form to allow this?