Perhaps it is the version of qpdf2 you have installed. As my Opera seems to work OK. I haven't updated to a recent verion of qpdf2 in a while. I beleive my version of qpdf2 is: freetype-2.2.1-2004...
Hmm, I don't seem to have the ipk with me (must be at home). If you need to know more let me know.
I hope this helps,
Craig...