Monkeybread Software - Freeware - Combine PDFs 2.1 This simple tool is one of several free utilities available at Monkeybread. Unfortunately, time has passed this one by, at least with the release of Automator in Mac OS X "Tiger." With Automator, it's simple to combine PDF's, and even to convert documents to PDF and then combine them. There are a variety of pre-built Automator workflows for doing this if you aren't in to figuring it out on your own.