Search inside of PDFs & other publications

Hello,

I am looking to search inside of PDFs with the built-in WordPress search feature.

I have found wp-publications-archive @ http://code.google.com/p/wp-publications-archive/ but I am waiting for some support problems to be addressed.

Any other plugins for this? Any known hacks?

Thanks much…

P.S.

This same type discussion not involving me has gone dead: http://wordpress.org/support/topic/107800?replies=5