Pair assets with briefs, check versions, carry revision notes. Every one is ready to run, and you can adjust it in plain language.
Send client proof marks to the maker on the reviewed PDF.
Your maker gets the fixes in the review task, tied to the PDF version your reviewer marked up.
Tie rejected proof comments to the next design revision.
Your designer gets the changes reviewers requested, tied to the rejected file version, with a link back to the approval.