TL:DR; 100% managed version of ZLIB compression library.
100% managed version of ZLIB compression library. Full C# source code is included.
PrPages - a developer module royalty free! Helps to calculate printing costs while analyzing pdf-pages regarding dimensions and used colours or b/w for single pdf-files or complete paths. It works with all programming languages in all 32-/64-bit-sys.
.Net SDK allows integrating video editing and processing capabilities into software. Use it to create your own movies out of any audio and video files. Includes transitions and effects. Supports AVI, MPEG, WMV, 3GP, MOV and other popular formats.
Gnostice PDFOne .NET is a component suite with a rich set of APIs. It allows developers to easily create applications that can view, print, create, edit, enhance, stamp, secure, merge and split PDF documents.