svg manipulation

hallo,
i am interesting in using ther rdf graphs   produced  using isaviz in a presentation . But  i found it difficult to get a clear view even for the smallest fragment. Meaning that i try to insert them in a powerpoint presentation.
i have tried batik export possibilities  as well as adobe svg viewer.

any idea?

thanks for your suggestions
Despina Makry
phd candidate 
Demokritus University of Thrace Greece.