APDF - Export PDF from Flex
The APDF class enables to create and export PDF documents from Flex.
http://candymandesign.blogspot.com/2008/06/exporting-pdf-from-flex.html
InteractivePNG
From the site:
Like magic, transparent parts of a PNG in your MovieClip are ignored during mouse interactions. Check it out!
Normally the clear areas of a PNG are treated as solid, which can be especially frustrating when dealing with a lot of images that overlap each other because they tend to block mouse interactions on the clips below them.
This utility fixes that so that mouse events don’t occur until you bump against a solid pixel, or a pixel of any transparency value besides totally clear. InteractivePNG lets you set an alphaTolerance level to determine what transparency level will register as a hit.