There are several PDF programs one can use to merge and splice/split PDF files. PDFSam is one. Here is a split example. http://www.vbaexpress.com/forum/show...d-instructions

PDFSam also has a GUI method to do it as well. Before I got Adobe Pro, it used one of those methods.

I also wrote a vb.net file to accept command line parameters to do it using the iTextSharp.dll routines.

There are several other 3rd party PDF programs to can accept command line parameters if you are seeking that kind of solution.