Clean but small artwork is now enlarged faithfully instead of redrawn. Operator rebuilds only captures that cannot print as they are, like shirt photos, mockups, and screenshots.
Operator checks transparent artwork against a color that is not in your design, so white and grey parts are not missed, and removes it without grey fringes or filled-in holes.
Follow-ups such as "make the text grey" build on the version you approved instead of starting over.
Results are clearer: notes that do not block delivery appear as Delivery notes, and a run that cannot finish tells you why.