It seems like such a simple thing, but in fact, can be very tricky to accomplish by hand: combining multiple PDF documents into a single PDF document. However, the good news is that you can create an Automator workflow service that makes the process a one-click operation.
The following documentation describes an Automator workflow for creating a new PDF document containing the merged contents of multiple PDF documents.
DO THIS ►Launch Automator and create a new service workflow. Leaving the document unsaved, replicate the workflow described in detail below.
To save and install the service, select Save from the Automator File menu and enter the name for the service in the forthcoming sheet. (⬇ see below )
NOTE: The name you assign for the workflow file will be the menu title that appears in the Services and contextual menus.
With the service created and installed, you are now ready to try it out. We’ve provided some example files for this purpose.
DO THIS ►DOWNLOAD and unpack a ZIP archive (2.4 MB) of PDF files from the U.S. Census Bureau.
Unpacking the archive will create a folder containing six multiple-page PDF files (⬇ see below ) . Each PDF file contains information about voting registration trends for one of the previous six United States Federal elections (U.S. Census: Voting and Registration). You will use the service to combine these six files into a single PDF file.
DO THIS ►With all of the files in the folder selected 1 , click the Action Menu popup 2 to summon the contextual menu. Select the service from the bottom section of the menu 3 .
The workflow will execute, combining the selected PDF files into a single new PDF file, and then prompt for the user to enter a name for the new file (⬇ see below ) :
DO THIS ►In the prompt dialog, enter a name for the created PDF file (⬇ see below ) :
The created file will be named, moved to the Desktop, and opened in Preview (⬇ see below ) :
For your connivence, we’ve provided the completed Automator workflow service for you to download and install. Follow the directions below:
DO THIS ► DOWNLOAD the example Automator service workflow file.
The Automator service workflow file appear when the ZIP archive is uncompressed. (⬇ see below )
Standard installation of an Automator service is usually accomplished by double-clicking the workflow file in the Finder. However, doing so may summon the following security dialog:
This occurs because Automator workflow files are currently saved without a developer signature, and the GateKeeper security settings in the Privacy system preference on your computer are set (by default) to only allow developer-signed workflow files be opened. (⬇ see below )
Fortunately, OS X provides a mechanism for knowingly opening a quarantined workflow file.
DO THIS ►Right-click on the workflow file in the Finder to summon the Finder’s contextual menu. Choose Open from this menu: (⬇ see below )
A second security dialog appears, but contains an option for opening the workflow file. (⬇ see below )
DO THIS ►Click the Open button in the security dialog. (⬆ see above )
Now that you’ve approved the workflow file for opening, the standard service workflow installation process will begin with the presentation of the Service Installer dialog. (⬇ see below )
DO THIS ►To installer the Automator service, click the Install button in the Service Installer dialog. (⬆ see above )
The workflow service will be installed in the Services folder in your user Library folder, and a completion notification dialog will offer the view the installed service in Automator. (⬇ see below )