So Adobe has finally decided it was time to release a 64bit PDF iFilter. How it took them this long to release or WHY it took this long for them to release it, i'll never know. Check it out on their site
I went through the pain of hacking together their 32bit iFilter to work on 64bit and frankly it was a pain in the butt, so this is a welcome addition for me. I have yet to actually try it out, but as soon as I get the chance, I'll update this post.
Side note, FoxIt (who's PDF reader I use everyday) has had a 64bit iFilter for I don't know how long now, but awhile. I think its free for dev use, and only a few K for production use. Apparently in testing, the FoxIt iFilter is faster than the Adobe (but this claim was pre-adobe 64bit iFilter, so i'm sure that might change things). Check it out