To make a PostScript or EPS file, install a PostScript printer driver.
For Windows 98/Me/2000/XP, Adobe PS printer driver is available.
On Windows Vista/7, install some printer driver that is a driver for a PostScript printer.
Install it to with setting the output port to be "FILE:".
To make a EPS file, on the property page of the driver, click Advanced, open Document Option, open PostScript Option, and set the PostScript Output Option to be EPS(Encapsulated PostScript).
After this, on the Graphics Option page, change the Image Format to METAFILE(Printer) or PRINTER(direct), and on Printer setting, select the PostScript printer and execute a program. When the printer driver asks the output file, save it as a file with extension ".PS".
Note that the size of the Bounding Box of the generated PS file is to be the paper size that is set on the printer driver.
Install Generic-PostScript-Printer driver, and set the output file to the Output URI on the property of the driver, and then execute a program that have the line below at the beginning.
GRAPHICS DEVICE PRINTER
But recent Linux does not allow us to do that so easily.
On Fedora 14, we need to edit /etc/cups/cupsd/conf to insert a line
FileDevice Yes
and reboot.
We install the driver Generic-PostScript-Printer by Output port appointing LPT1 provisionally.
We make an empty file, for example, test.ps, and on the property of the driver, set the Output URI as
file:/home/user_name/test.ps