i had to block google bot from getting to mins because I charge for them, and i had to use the URL removal tool lol.
They should get indexed no worries.
I dont know about that article, they start right, yes bots can read the PDF file, but optimizing them, thats just daft, the bots prefer to crawl the page rather than follow the key words. Just make sure you use your popular words when you write them should be fine.
are you talking about
http://www.buskerdoo.com or another site, i couldnt find any PDF files on ur site.