Here you can also choose specific names for your archives, or leave the name the same as the source file.

Whenever you add individual files or folders to the folder using this Folder Action, the Finder will automatically create archives. Note that if the file or folder is large, it may take a while for the archive to appear.

Make your own Folder Action

If you browse through Automator's Library, you’ll find many other actions you can use as Folder Actions. Look in the categories for Files & Folders, PDFs, and Photos, and you’ll find plenty of ways to save time.