PDF Concatenation Tool
ConcatPDF is the tool to concatenate PDF files. It can concatenate, extract, encrypt, decrypt, configure PDF files, convert image files to PDF. GUI version and CUI version are both available. iText.NET is iText porting on .NET Framework by J#. This library allows you to generate PDF, (X)HTML, XML, RTF files on Microsoft.NET Framework including ASP.NET.
Xface is a set of open source tools for creation of MPEG-4 and keyframes based 3D Talking Heads controlled over network with SMIL-Agent scripts.
TerraVision is a real-time multi-threaded 3D terrain visualization system. It can browse massive terrain and other data sets that are streamed over the Web. It also supports overlaying rich 3D models on the terrain to represent buildings, icons, etc.