This project is a fork of iTextSharp (LGPL / MPL) 4.1.6 that includes Bouncy Castle as a NuGet package instead of directly including the source code.
The iTextSharp (LGPL / MPL), Bouncy Castle NuGet package can be installed by running the following command in the Package Manager Console:
Install-Package iTextSharp-LGPL-BouncyCastle