The code is actually from the iText project. I added a shell script and created an installer. Hope people find it as useful as I did.
To install download and decompress the sit file. Then run the installer. To use the application, open a Terminal window and type joinPDF. The structure of the command is as follows:
A graphical front end has been kindly been provided T.Klussmeier. It is included in this archive and requires separate installation, more information can be found here http://www.mac4ever.de/software/. Ability to splitPDF files at the command line, every page going to a new PDF document, as requested by a user.
Also icluded alternative GUI, PDFJoiner.