If no one else is going to shout "here!", I'd raise my hand.

I've done quite a bit of low level hacking in PDF (as well as its cousin PostScript), so this might be a good fit... (Actually, I've written my own PDF lib in Perl (that was before PDF::API2 was ready for prime time) -- unfortunately, it's proprietary... (paid work)). Also, I have access to virtually all major unix platforms, so I could at least make sure the modules build/work on those.

OTOH, I'm entirely new to maintaining CPAN modules... so I'm wondering, what does it entail beyond hacking at the sources?