In previous versions of Map2PDF for ArcGIS there was no way to view the GeoPDF back in ArcGIS. The latest release of this application allows you to do this! We are now able to bring in all the PDF map frames and layers then toggle them on and off just as you would a standard ArcGIS layer. Because it is treated as a standard ArcGIS layer, you can also export the content back out as a GeoPDF. Create GeoPDF --> work with GeoPDF in Reader --> View GeoPDF and annotations back in ArcGIS for further analysis. Sounds kinda like a round trip to me..
The following VBA code is for those hackers out there who already have Map2PDF for ArcGIS version 4.0 and would like to wrap their heads around the GeoPDF View COM Interface. Note that first the “Map2PDF for ArcGIS View” type library must be added to the project from the VBA editor's Tools->Reference command. This Interface will allow the developer to control view state, annotations, scale, etc...