Here is some sample code for PDF http://chirale.wordpress.com/2008/06/06/pdf-cover-thumbnails-for-attached-fi les/ - I don't know about the other types. I hope this helps.
Thanks,
Steve
Steve Kessler
Denver DataMan
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From: Neil Coghlan [mailto:neil@esl-lounge.com] Sent: Friday, April 02, 2010 9:31 AM To: support@drupal.org Subject: [support] Automatic creation of a screenshot of an uploaded pdf/doc/ppt
I'm trying to add funtionality to my site whereby when a user uploads a doc/pdf, on hitting submit, an image is attached which is a screenshot of the file's first page. Is there any type of module that could offer what I'm looking for?
Neil