No. Creating a contact sheet from Bridge only gives you the first page.
You can print to PDF from InDesign and choose thumbnails there. That would give you a PDF you could place and crop as needed for the buttons.
Both the script and the program can only extract what's in the file: http://help.adobe.com/en_US/indesign/cs/using/WSa285fff53dea4f8617383751001ea8cb3f-6d51a.h tml
(Similar to the above, a PDF may contain a per-page thumbnail, but I have no idea on how to extract those.)
Thanks for the replies, I'll check out that script.
What I am in the middle of doing at the moment is reducing the pages size in the main window so that all the pages show as small thumbnails, then taking a screenshot and pasting into Photoshop.
I then marque the grey background and delete it. I then seperate each thumbnail into their own layer.
I just was thinking Indesign would have aa more automatic way of generating page thumbnails as it is a popular method for page navigation.
How about outputting the pages to separate pdf files. Automate the import of said pages into photoshop run an action reducing them to the required size and format then place those images back into indesign.
That should make it almost a two click operation. not counting the placing of the generated images.