If you are into the serious business (or interests) of editing meta data for digital pictures, you may want to take a look at this tool called ExifTool. This free software basically can do anything about the “tags” of digital pictures, copying, renaming, standardizing and what not. This is a powerful tool with all kinds of parameters and built-in flexibility. It is not for everyone, though, as using it does require some computer knowledge especially for its advanced features. Do give it a try if you run out of options.