Taggy Tagger is a Mac menu bar app, that automatically tags files for you without requiring you to set up complex rules.

Simply select a folder in Finder, drag 'n drop the tags you want to be assigned and watch them already appear when you add a new file to the folder. In addition, Taggy Tagger can use tags to automatically copy/move files to a destination folder. If you use Finder tags on Mac, Taggy Tagger is for you.