Verify asset versions, file agreements, attach briefs. Every one is ready to run, and you can adjust it in plain language.
Log your decision against the PDF proof you checked.
Your proof tasks show who decided, which file version they reviewed, and who takes the next step.
Return corrected proofs for another check after every fix is done.
Your reviewer gets the corrected proof and completed fixes when the last correction is done, so the next decision does not sit in rework.
Reopen your proof review task with the corrected PDF.
Your reviewer gets a task ready to review, with the replacement proof and its version named in a comment.