I can replicate your problem.  Seems you have to explicitly tell PostScript::Simple to not create EPS files (apparently that's the default). I.e. 

    my $p = new PostScript::Simple(papersize => "A4",
                                   colour => 1,
                                   eps => 0);  # <-- !

[download]

EPS files won't have1 a PS showpage command (which tells the PS interpreter to actually print/output the internally rendered page), because they're meant for inclusion in other documents.

GhostScript-derived programs automatically add a showpage if there isn't one already (while real printers do not) — which explains why it does work in that case...

___

1 or, more precisely, they shouldn't normally contain "showpage" — at least that's the theory (in that respect, PostScript::Simple is behaving correctly — what's a bit counter-intuitive, though, is that EPS output is the default...).

In real life, however, many programs do output a showpage even with EPS files - the one you're including does have one, for example - just in case someone wants to print the EPS file stand-alone, i.e. without wrapping it in a regular PS document. For the same reason, programs that include EPS files typically locally redefine the showpage command as a no-op (also done by PostScript::Simple), so the command doesn't cause any problems with the page being printed too early...

In reply to Re: create ps file with PostScript::Simple - cannot print it out? by almut
in thread create ps file with PostScript::Simple - cannot print it out? by cta

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