Jpeg and pixel

How would I know?  If you doubt this, try it with a standard font 
and compare.

Note what I said about artefacts: something other than R is involved 
when you print.  This is the sort of thing which happens if bitmap 
images are not printed at their native resolution.

I saw that R can write in SVG format, using the RSVGTipsDevice
library. I think SVG is the closest format to losslessness 
when printing.

Of course, my ecological motivation would ban all formats that
make printing easy, to save the environment by saving a few trees :-)

Alberto Monteiro