I review alot of technical documents with goodnotes and often times, there will be updates to the underlying PDF Document from time to time. I would like the ability to move my annotated notes to the latest PDF.

In my situation, almost all of the time, the underlying PDF would have the same format, number of pages etc. So the ability of export only annotations (which you current support) and merge the exported PDF annotates with a new PDF would solve my problem.