
@C1@c@b@_ PostScript Options

     Set many options for PostScript output. The output PS file
     is fully parameterized and editing the output is possible.

     By default, the output routine will write a standard EPS
     file with 1 screen pixel equal to about 0.75 PS point
     (1PS point is defined to be 1/72th of an inch). The exact number 
     depends on the screen resolution and in all cases the output would
     appear exactly the same size as the image looks on screen (if the
     image is no larger than the paper size) and centered both horizontally
     and vertically on the printed page. Text and sgfs will also be output
     if present. Text by default is immune to scaling unless requested
     otherwise.

     It is strongly recommended to use autofit and autoscale because in
     all case they produce the most reasonable output.

@b Interaction
@f PaperSize:
     Select paper size from a list of common papers the destination printer
     uses. Note that page size can easily be changed in PS file.
@f Landscape
     Output the image rotated 90 degrees.
@f Portrait
     Output as it is.
@f AutoFit
     Choose one of the two above automatically for the best fit.
     The criterion is to avoid scaling if possible and to keep
     margins on all sides as close as possible.
@f Xscale, Yscale
     shrink or expand the image. A scale of 0.30 approximately
     matches 1 screen pixel to 1 printer dot.
     Note that changing xscale changes yscale, but changing yscale 
     does not affect xscale.

     The resulting printed size is updated whenever it changes. And
     it turns into red when the printed image would be larger than 
     paper size.
@f Autoscale
     Applies only if the image is larger than page size and in that case
     the image is scaled to (just) fit the page.
@f Textscale
     By default, text is output in its original size and not subject
     to scaling. Toggle this flag to override the default. Note that
     the scaled text size will not be less than about 4pt.
@f ScrnSize 
     Toggle this flag off to suppressing screen size matching. When
     this flag is off, 1 pixel is taken to be 1 PS point, which will
     result in the printed image to be about 40% larger than it looks on
     screen. For images larger than the paper size (looks on screen),
     this flag has no effect.
@f OK
     Take the current options
@f Cancel
     Restore the default

@s@b Bugs:
    If text is present, font encoding is explicitly switched to ISOLatin1
    for special symbols (non-math). If PS printer is level 1, switching
    has no effects.
     
