这个是一个好好用的完美挂请大家用用好不好用大家-Postscr ipt(R) Printer Descr iption (a.k.a. PPD) files are text files containing information about special features available on Postscr ipt printers such as paper sizes, screen values and fonts available on your printer. These files are in a very specific format that can be read by software applications. The information is used when printing your document by the printer driver for decision making purposes or to invoke particular features of the printer.