If you’re looking to generate a client side PDF from your Flash, Flex or AIR applications, there is a great ActionScript 3 library available now for doing just that. It’s called AlivePDF and was built under an MIT license so you are free to use it in your applications. I downloaded it and tried it myself and was generating a PDF from my AIR app in seconds! I found it very easy to use, and without requiring extensive coding. The download includes examples which are extremely helpful to get started quickly. There are some more useful notes about the API, as well as a sample of how to open and view that PDF just generated here as well: http://code.google.com/p/alivepdf/wiki/APINotes.