Two possibilities that might work are:
1) PlotView (formerly called MacHP) from Stevens Creek Software allows you to
open and display Macintosh HPGL files on a Macintosh, and copy and paste
them into other Macintosh programs for embellishment before printing to a
LaserWriter. If you can use Apple File Exchange or a similar program and
perform a generic text translation on the PC HPGL file, you can then open it
with PlotView. This may work, but may require a little experimentation and
manipulation with ResEdit or similar programs. Another option is to write
your own AFE translator.
2) Another program that may work is called CADMOVER from Kandu, which is a
2-D/3-D Macintosh-based vector graphics translation utility, with
bidirectional IGES, DXF, PICT, MacDraw, Minicad+, MacConcept, HPGL,
Minicad+, Dimensions, Hyperspace and Space Edit.
Both products are listed in the Tech Info Library and/or the buyer's guides on
AppleLink.
We feel the easiest solution would have been to select a program on the PC that
also prints to a PostScript printer or, at least, use a program that can save
the file in a format (not just an HPGL print file) that can also be read by
other Macintosh or PC programs that can print to a PostScript printer. There
may be PC programs that open HPGL files and save in a more commonly used file
format, but we aren't familiar with any.
For more information, search under: "Stevens Creek" and "Kandu"