You can do that with an Acroform by spawning a page template. If it has
to work with Reader versions prior to 11, then the document will have to
be Reader-enabled using LiveCycle Reader Extensions (which is different
than Designer) with the appropriate usage rights. Reader 11 allows
template spawning to create a new page (and overlay an existing one)
with a non-enabled document. Here's a link to some documentation:
http://livedocs.adobe.com/acrobat_sdk/9.1/Acrobat9_1_HTMLHelp/JS_API_AcroJS.88.12...