PDF Clown - PDF Clown is an open-source general-purpose library for manipulating PDF documents through multiple abstraction layers, rigorously adhering to PDF 1.7 Specification
SmartWindows.app - Auto arrange all your app windows, whether on one screen or many with a single click!
PdfPig - Read and extract text and other content from PDFs in C# (port of PDFBox)
SANeForce - SAN Pharma Sales Force Automation
PDFSharp - Office & Productivity and Development
ReIcon - ReIcon is portable freeware that enables you to save and restore your desktop layout.