PDF 2 SWF 2 PDF Overview.
Getting things between the PDF and SWF world is very useful, both are ubiquitous, one is portable, one is easily viewable in the web and remixable.
AS3 creating PDF's with AlivePDF
Best free PDF 2 SWF convertor (and can be used with Flash9/Flex)
Useful with a print to PDF driver, like PDF995 to get other formats like PPT, Word, XLS over. Here are some other approaches people have tried.
Other options:
Flash Paper (discontinued but still on sale) and it's Print2PDF, and SwfPrinter and VectorPrinter
Upload documents to get converted to virtual flip books