
There have been numerous hints here about how to combine PDFs into a single document. Well, Automator now handles that task very nicely. You can select the documents that you want to combine in the Finder and then Control-click on them to bring up the contextual menu. Choose Automator -> Create Workflow. Once Automator opens, add three steps to your Untitled workflow:
- Finder: Get Selected Finder Items. Actually, this one is automatically added if you had the files selected in the Finder.
- PDF: Combine PDF Pages (I choose Appending pages).
- Finder: Open Finder Items (Open with Default Application).
This will combine everything, then open up a Preview document with all the PDF pages nicely laid out in one document. You can save the workflow if you do this on a regular basis. Then Control-clicking on a group of PDFs will give you a contextual menu with your workflow ready to go.