Is there anyway to have an export function to export the Google Visualization organizational chart as an image? I want this as a feature of my website, so people can click a button or a link and have it save as an image or a pdf file
Make a screen-shot of the browser. There are multiples tools out there to do this. We used this: http://code.google.com/p/speak-lib/source/browse/#svn/trunk/WebShot%3Fstate%3Dclosed
It works fine. We generate previews of design changes that way.