This tool enables you to redirect a port used by a (virtual) printer to be used by a program on a computer. An application that redirects a first printer port to a program on Microsoft Windows operating systems. During setup, you will add the port name to be redirected. Other settings can be changed in the Configure Port menu. It is always running in the system context of the windows printing and spooling sub-system, on a single user system with a local Redmon enabled printer Applications to run in a User-Context and execution of Redmon is under control of the spooler subsystem.
Also, you can consider it as an emulator for PostScript printer.
RedMon (Redirection Port Monitor) is licensed as freeware for PC or laptop with Windows 32 bit and 64 bit operating system. It is in system miscellaneous category and is available to all software users as a free download.