Guillaume,
it is a little bit confusing, the PDF export does already exist. There is nothing to do on that side if you would like just to export the screenshot of the current whiteboard.
Generating a HOLE PDF out of images makes zero sense from my point of view. Just think about it, you have a PDF with 300 pages, you generate an image for each slide, and then make a pdf out of 300 images (each image has around 2-3 MB) so you have a 1GB PDF image-slideshow then. Do you really think this is what you will want then? I would stick to the single page PDF then.
Everyting else would only make sense if you really generate *raw* PDF, like a PDF Writer does it. And htat project would mean you need 3-4 developers and 6 months to realize it. Or you buy some expensive commercial Server Side PDF decrypter/encrypter software.
Sebastian
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Sebastian Wagner
http://www.webbase-design.dehttp://openmeetings.googlecode.com
http://www.wagner-sebastian.comseba....@gmail.com