OneDrive, Microsoft's file sync app formerly known as SkyDrive, lets you store your files online, edit Office documents in the free Office Web Apps, and easily access your online files from your PC.
Your reviewer gets the current asset with a clear request, and your campaign task keeps the handoff in view.
Your campaign task points out an outdated draft before review, so your team can open the newer file without hunting for it.
Your review tasks show the current image revision and reviewer due date, so the next handoff is clear.
Your maker gets the fixes in the review task, tied to the PDF version your reviewer marked up.
Your review task shows file access problems before review starts. The owner sees what to fix.
Your creator gets the reviewer's requested changes and current draft together, so they can start the next revision without chasing files.