Question

Is there a way to edit a postscript file, to add or increase the number of copies to be printed?

Answer 1

I add /#copies 3 def in the setup section - or the whole prolog section if it is missing.

   %!

   %%BeginProlog
   %%BeginSetup
   /#copies 3 def
   %%EndSetup
   %%EndProlog

   72 72 scale
   2 2 translate

   /Helvetica-Bold findfont .2 scalefont setfont
   0 3 moveto (Not too shabby) show

   /Times-Italic findfont 1 scalefont setfont
   0 0 1 setrgbcolor
   0 4 moveto (Niels Castle!) show

   showpage

To sum up the PostScript Language Document Structuring Conventions Specification "If multiple copies of a document are desired, use the #copies key or the setpagedevice operator" and it goes on to discourage the use of the copypage operator.

You have to send the file to an imaging device to see it in effect - opening the PostScript file with GhostScript or Preview on Mac will just render one copy ignoring the operator.

Answer 2

featurebegin{
  %%BeginNonPPDFeature: NumCopies 3
  3  /languagelevel where {pop languagelevel}{1} ifelse
  2 ge { 1 dict dup /NumCopies 4 -1 roll put setpagedevice }{ userdict /#copies 3 
  -1 roll put } ifelse
  %%EndNonPPDFeature
}featurecleanup

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