Place the marked proof document on the maker’s revision task.
Your maker gets the marked PDF and a clear fix list on the right task, with the reviewed version named.
Your maker can open the proof and the reviewer's marked pages in a single PDF on the revision item, with the proof first.
Your makers can find marked PDFs on the right tasks, with the proof version in the comment.
Your makers find the marked PDF on their revision cards, with the reviewed version noted when a handoff missed the file.