Lester Burnham wrote:Lastly, I'm unaware of a PDF viewer that works with partial files.
I have come across this before, where it will start showing the pages that are downloaded and tell you the percentage that it has downloaded. I very much doubt that there will anyway to enforce this though. It will be down to the browser settings that a user has and what plugins they are using.
Think about the security of running a file as soon as you click a link for it.