Aspose.BarCode For .NET V19.8

I would prefer to be do this in .net but am open to other suggestions. I have had a look on this site at a couple of popular libaries - itextsharp and pdfsharp. I have not been able to find any examples where a PDF file is being split into smaller PDFs of differing number of pages only fixed lengths.

Aspose.BarCode for .NET v19.8