RedMon (Redirection Port Monitor)

The RedMon application was designed to be a small tool that port monitor redirects a special printer port to a program. RedMon is commonly used with Ghostscript and a non-PostScript printer to emulate a PostScript printer, or with Ghostscript as a PDF writer.

RedMon can be used with any program that accepts data on standard input. Using RedMon you create redirected printer ports. If you connect a Windows printer driver to the redirected printer port, all data sent to the redirected port will be forwarded by RedMon to the standard input of a program. This program is then responsible for processing the data and producing new output.

A PostScript Windows printer redirected to a RedMon port can be shared on a network. When this printer is configured to use Ghostscript and a non-PostScript printer, it appears as a PostScript printer to other network clients. RedMon can create a PDF writer using a PostScript printer driver and the Ghostscript pdfwrite output device.