ScanWiz has a function to automatically detect and remove blank pages which is
handy if you are scanning double sided documents and some of the pages only
have text on the front side.
To use just right-click on the thumbnail view and select remove blank pages.
This function looks for pages that have less than 0.1% of black pixels so this may
not work if you have dirty scans or black borders also it could remove pages that
have a very small amount of text on them please bear this in mind when using.