Turn reviewer comments or marks into a list of corrections for the maker.
Add reviewer marks to the designer's task for the right proof.
Your maker gets the marked PDF and a clear fix list on the right task, with the reviewed version named.
Tie PDF markups to the design revision the reviewer saw.
Your maker gets a clear fix list tied to the PDF revision reviewers saw, so the next round starts with the right changes.
Add client image marks to the right design revision's fix list.
Your maker gets a clear fix checklist with reviewer marks linked to the proof revision they belong to.