Extract Pages has been updated to version 1.7.2.
This version fixes a bug: If PDF export is chosen, and the option to export groups of pages is selected, and a PDF file with the same name already exists in the target export folder, Extract Pages would create an invalid name for the exported PDF.
This is a free upgrade for all users of version 1.7.0 and above. Download the upgrade here: http://www.id-extras.com/shopping-cart/my-account/
For all previous owners, the cost of an upgrade license is only $29, and the upgrade is available for purchase here: http://www.id-extras.com/shopping-cart/?wp_eStore_add_to_cart=84