Having to fragment and divide multiple PDF files manually is tedious and boring; so why not use this program, called Split PDF, which usefully automates the whole task.
Split PDF can be used from the command line, where you specify, in a text file, the characteristics of each cut to be made, and the names of all the resulting new PDF files. This way you can process hundreds of PDF files that will be fragmented in just a few seconds.
For Split PDF to work correctly you don`t need to install Adobe Acrobat.