Hey guys,
Well, I tried all the solutions you suggested. The only free option that worked was k2pdfopt. (
http://www.willus.com/k2pdfopt/)
Unfortunately, the resolution is noticeably degraded during conversion.
So, after all of this, my solution will be low-tech: I'll just print the PDF without my annotations, and then copy my markups by hand. It's not ideal, but it won't take too long to do, either. It will also force me to be very selective in what I print, which isn't a bad thing.
Thank you all very much for your help. I was lost, and although a perfect solution didn't materialize, at least I know that I tried the available options.
Cheers!