[R] PDF Arial, Helvetica and Pagemaker 7.0

[Neuro LeSuperHéros]

Hello,

I can generate PDF documents and they look good on acrobat reader.  However, 
when I import the PDFs in Pagemaker 7.0 (on windows2K), I get an error 
message saying it does not recognize the Helvetica font.

I got this from ?pdf:

family
the font family to be used, one of "AvantGarde", "Bookman", "Courier", 
"Helvetica", "Helvetica-Narrow", "NewCenturySchoolbook", "Palatino" or 
"Times". Note the other specifications allowed for postscript are not 
available.

There in no mention of Arial.  Is there a way to force R to use the Arial 
family?

I'm on win2K
>version
         _
platform i386-pc-mingw32
arch     i386
os       mingw32
system   i386, mingw32
status
major    2
minor    1.0
year     2005
month    04
day      18
language R