PDF split and merge tool using iTextsharp

Inspired by several commercial products, I decided to create a PDF split and merge tool. This tool makes use of the iTextSharp library, which allows you to create and modify documents in the Portable Document Format (PDF). Implementation details of this tool can be found in this article: https://www.codeproject.com/Articles/1040410/PDF-Split-and-Merge-Tool-using-itextsharp