About Combine PDFs
Sure it’s simple, lightweight, and anybody could put it together, but after reading in MacWorld that somebody asked about how to do it I realized that there are a lot of people out there who aren’t willing to give Automator a shot, or are a little wary of the program.

To that end, this script is a good starting point for those people. Open it in Automator, play around with it, save a new version, or just use it as it was intended and how I use it: to combine PDF files.

Add them to the order that you want them combined in, choose your compression, and you’ll find a brand new PDF file on your desktop in no time.