Automatic Import from Folder includes Duplicates
I'm trying to create an automator Folder Action to import a folder which contains editied photos that have been converted to JPG using Photoshop. I've figured out how to automate the process using the Import Photos process, but I can't figure out how to get it to not import the files that are already in the folder. The folder updates every time a new photo is added--which is what I want--but also includes the photos that have already been placed in the new project. It seems like the automator script is missing the "don't import duplicates" function, or am I missing something? Is there a way to automate the process to NOT include files which have already been imported?
Thanks!
~Carlos
iMac (20-inch Mid 2007), OS X Mavericks (10.9.1)