PdfBox and IKVM are not new, but I found them very useful for a recent project, and decided to walk through a very basic introduction tutorial. Feedback and constructive criticism greatly appreciated. Also, I "discovered" iTextSharp after building a recent project using PdfBox. I recognize PdfBox comes with some heavy performance penalties. iText looks cool, but seems to have a higher degree of complexity. Anyone used both, and have comments about the comparison?