Well I think I've got it.
In the HTML to be rendered by the IE Webbrowser control:
<html>
<body topmargin=0 bottommargin=0 leftmargin=0 rightmargin=0 scroll="no" style="border:1px;border-style:solid;margin:0px;">
<object id="objPdf"
classid="clsid:CA8A9780-280D-11CF-A24D-444553540000"
height="527" width="852">
</object>
</body>
</html>From a command button on the VFP form, the Adobe Acrobat Reader functions can be called as such:
thisform.browser1.document.parentWindow.objPDF.LoadFile("mypdf.pdf")
thisform.browser1.document.parentWindow.objPDF.setZoom(125)... and so on.
Adobe function reference here (page 106-119):
http://www.adobe.com/devnet/acrobat/pdfs/iac_api_reference.pdf
