The %!PS-Adobe-3.0 is probably correct. It refers to the *Document Structuring Convention* version, not the Postscript languageLevel assumed by the script within.
DSC 3.0 was introduced in Sept. 1992, whereas Postscript language level 3 appeared in 1997.
The %!PS-Adobe-3.0 is probably correct. It refers to the *Document Structuring Convention* version, not the Postscript languageLevel assumed by the script within.
DSC 3.0 was introduced in Sept. 1992, whereas Postscript language level 3 appeared in 1997.