> Correction is in order - the screenshot/ rendering within Emacs requires Ghostscript. Printing to printer
> would use OS specific print commands e.g. lpr on *nix.
Now I'm even more confused. How does one "render within Emacs with
Ghostscript"? Emacs display rendering uses our display engine, which
doesn't need Ghostscript, and AFAIK cannot use it. I guess I'm
misunderstanding something very basic here...
The screenshots linked in OP shows split windows - one with original text and another with PS file. The PS file section is actually a PNG image generated with Ghostscript from the PS file. The PS file itself is generated by my code.