iTextSharp is a port of the iText, a free Java-Pdf library.
iText is a library that allows you to generate PDF files on the fly.

In development since 1997, JPedal is a 100% Java library designed to ease the integration of pdf files into any work flow. Concentrating on the easy display, manipulation and extraction of content, JPedal is an essential tool for pdf developers.

A package for creating and manipulating graphs (in the graph-theoretic sense). Creates a set of CLOS classes for graphs, vertices, edges. Provides algorithms for traversing, counting, searching for vertices.

The toolkit / controls library used by DreamBeam

How to solve problems with Visual Studio and SandDock controls that disappear