The Macbook allows you to merge .pdf files very easily.
- From your desktop, double click the document you want to open. This will open the free Apple OS X app called Preview.
- Click on the icon in the upper left hand corner of the Preview app and select “Thumbnails”.
- Select the document you want to merge and drag it into the Thumbnails preview window.
- Save the new document
How to merge 2 pdf files using the free built in Preview in Apple OS X