Packaging Workflow Takes Wing

pP: Why couldn't we do this with PostScript?

SM: Because PostScript is a page description language that fundamentally is based on a particular output device. PDF has given us a device-independent space, wherein we can see all the job elements before they are rendered to device specifications.

pP: There's as much skepticism out there now about PDF as there was in the early days of PostScript. Where is PDF not a good solution?