Has anyone tried to use FlexPaper instead of pdf2swf for the webpreviewer? I would like to allow my users to interact with the pdf, ie select section of the PDF and have that be recognized as a comment within Aflresco, etc. It looks like FlexPaper enables that functionality.
You may want to take a look at the Media Viewers project at Share-extras http://code.google.com/p/share-extras/wiki/MediaViewers. The pdf.js based viewer allows interaction with the pdf in form of search and text select. The source may also be of help to you as an example how you can implement your own viewer.