Lightroom?

Here is a thread on the Adobe Lightroom Forum which will be of interest:

http://forums.adobe.com/message/4618131#4618131

One contributor mentions what is a more complete solution:

http://www.photographers-toolbox.com/products/lrmogrify2.php

I have not tried either of these approaches but know that lrmogrify2 has a good reputation as does the author, Timothy Armes.