/SIZE=font_size

    This is the size, in points, of the font to be used. The default
    size is 12 points for converted documents; mail system text-to-
    PostScript conversion defaults to 10 points. The minimum size
    is 4 points; the maximum size is limited to the size of a normal
    letter size sheet of paper.

    Note that /SIZE is not restricted to integer values-a font size
    of 10.5 is both acceptable and often times useful.