Take a look at this blog post I wrote quite some time ago. It uses merging
of two documents to explain how the Acrobat's IAC works:
http://khkonsulting.com/2009/03/adobe-acrobat-and-vba-an-introduction/
To find out what the parameters are, you need to read the documentation,
which you can find here:
You want the Interapplication Communication API.
Karl Heinz Kremer
PDF Acrobatics Without a Net
PDF Software Development, Training and More...
