lilypond output help

[mike]

I have finally gotten lilypond to work with my wikipedia.

For the most part I am using lilypond -f=png -s -p --png to create the output
file, with the .ly file to contain

\paper{
 raggedright = ##t
 indent = 0\mm
}
\score {

 \relative c''{

 [dynamic code]
 
 } 

layout { }
}

this works great so far, but is there any way I can dynamicly shrink the png to
size and remove the excess white space on the output?

Tnx in advance
Mike