...to copyright owners and limit their use; (3) Promote continued investments in new creative works by safeguarding copyrightowner's rights and ensuring creators are treated equitably when the public interest requires their works be made...
http://www.tmcnet.com/usubmit/2009/06/16/4229353.htm
...file you are licensing be copied, transferred, or placed on a network of any sort without the authorization of the copyrightowner. You may print out and retain one-only printed copy of the PDF file. This printed copy is fully protected...
http://xml.coverpages.org/ni2008-11-21-a.html