You can actually do this with Automator very easily. First open Automator and follow these steps. Choose ‘Service’ as the type of document to create when Automator opens. (or go to File>New) Name it ‘Combine PDFs’ or something similar At the top, choose ‘PDF Files’ in the ‘Service Receives Selected’ drop down. Then choose ‘Finder’ next to ‘In’ Drag a ‘Combine PDF Pages’ action to the workflow Drag the ‘Move Finder Items’ action to the bottom of the workflow. This will move the combined PDF to the Desktop, or wherever you choose. That’s it. Save the service. Then highlight 2 or more PDF files in Finder, right click on them, point to ‘Services’ and select Combined PDFs. (or whatever you named the service). Then go to your desktop and you should see the combined file there. Of course you can tweak this to serve your needs. You could have the service ask you for a file name or whatever if that’s your desired behavior. The great thing about doing it this way is that it’s always available to you very quickly, and there’s no need to launch other apps. Good luck.