[pdftex] Merging duplicate embedded fonts

[Thierry Bouche]

M> Am I doing something wrong resulting in the duplicate fonts? Or did I 
M> encounter a bug in pdf(la)tex?

In principle, pdflatex merges embedded fonts if and only if they
appear with a full line in the map file (including exact Postscript
name). I don't know exactly if this is done for other font formats
than Type 1, though. (I suspect this aspect of font subsetting was an
add-on by Thanh quite some time ago, and the current team is not so
much familiar with it, but I hope I'll be proven wrong!)

Best wishes,
 Thierry