Dispatch-it is the best solution for all your digital imaging applications. It is not only a PostScript/PDF RIP, but also a workflow manager. Once a file is sent/printed to one of the workflow queues it follows the path that you have set for it. From the same file you can do a soft proof, print a color proof and make films or plates. All this without ever going back to the application that generated the source file. This is what we call "Print-Once" workflow.