How to enable byte serving(fast web view ) for pdf on tomcat 5.x server

Hi,
I am new the site and this is my first request.
I have to download pfd, instead of waiting the user for complete download of the page, first I need to display first page, and then in the background I have to download the rest of the document. Which is byte serving. I try to implement byte serving (fast web view for pdf) for pdf files in Tomcat 5.x it is not working. The same functionality is working in other servers.
I have not done any coding to use byte serving in the other servers, simply I enable byte serving for pdf using the adobe.
Can any one help me …..
Thanks…..

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