I love the idea that we are able to share PDFs online and allow invited users to comment on the PDF. But why in God's name would you not allow the PDF to be modified and the edits viewable without deleting and then having to reshape the document. Backwards thinking Adobe.
• Allow moderator or selected individuals to collaborate and share the PDF for online review
• Allow moderator to make edits and save back to cloud so viewers can view changes without having to delete the file, unsure the file and then resubmit sharing to those same people