🚀 go-pugleaf

You didn't state if the graph was in bitmap or vector format. Bitmaped
drawings plot poorly. The plotter makes the drawing byproducing a number
of dots. If the drawing is enlarged, the plotter would draw it by 
producing a series of blocks. If it is in vector format, it probably has
an option to save in PICT format. Once in PICT format it could be plotted
by a plotter driver. The current best on the market, in my opinion, is 
MacPlotts II (not to be confused with MacPlot) by Computer Shoppe.
Sorry, but I don't think it would help to bring a bit maped picture
into MacDraw then save it in PICT format. I think that it will still
look bit mapped.

Good Luck,

TeriAnn