Non, spammy resources, and not places that will delete your files in 30 days or something. In addition, somewhere you can host that will allow search engines to crawl and index the pdf naturally.
Sorry, I meant off-site. Something like Hashdoc. I used to do graphic design for a living and I had a "toolkit" of resources, we all had our special little ways to get things done -- I just think graphic designers can be extremely resourceful in my experience.