Export all or selected PDFs including annotations at once

It would be nice to have a feature to export all or selected PDFs with annotations at once. I see that this is already possible for single PDFs and it works pretty well. However, it would be nice to be able to do that for more than one (or all) PDFs at once. Especially helpful when sharing PDFs with collaborators or in case one wishes to switch reference managers at some point such that annotations won't get lost.