User with the Enterprise License can use the Aloaha Scripting APIs as explained on:
http://www.aloaha.com/software-development/pdf-sdk.php

To splitt all multipage PDFs of a given path requires only 3 lines of code:
(http://www.aloaha.com/software-development/freeware-apis.php)

 

Set pdf = CreateObject(“aloahapdf.edit”)

                              Call pdf.split_pdf_in_dir(CStr(“c:\tosplit”))

Set pdf = nothing

 

If you need only to extract some specific pages of a given document you should also try the portable Aloaha PDF Reader:

http://blog.aloaha.com/2012/05/03/aloaha-releases-one-of-the-worlds-smallest-portable-pdf-viewer/