This week's book giveaway is in the Mac OS forum. We're giving away four copies of a choice of "Take Control of Upgrading to Yosemite" or "Take Control of Automating Your Mac" and have Joe Kissell on-line! See this thread for details.
I don't know what "Linear zed PDF" is (a special PDF?) but why not break the PDF up into multiple files (say four x 5MB files) and send this to the client from a servlet? I think a PDF API should do it.