i have seen demo of webviewer on homepage.I see the xod file is loaded really fast. I use Fiddler to capture request , i see that : webviewer usually send a hidden request url like :
http://www.pdftron.com/xod/Restaurant_Guide_2010.xod?_=80097,368280
http://www.pdftron.com/xod/Restaurant_Guide_2010.xod?_=80097,368280
....
i think this request is sent a range byte to server, and server will read xod file with this range byte. Who can send me source code in server to do this?