GroupDocs
GroupDocs creates easy to use, comprehensive online document management APIs for .NET, Java and Cloud, as well as a range of Cloud apps that improve document collaboration for organizations of any size. GroupDocs saves developers and end users time and money by offering a complete and powerful set of document management APIs allowing users to view, sign, annotate, compare, convert and assemble documents in a wide variety of formats, including Microsoft Word, Excel, PowerPoint and Visio, as well as Adobe Acrobat PDF and many image formats. Flexible workflows and easy-to-use, customizable user interfaces are part of the package.
Stimulsoft
Stimulsoft specializes in the development of components for the Microsoft .NET Framework. Customer satisfaction is the company's first priority and as such it aims to produce top quality software. Application development is not always easy, but Stimulsoft does its best to help developers to incorporate the most advanced technologies available on the market today into their applications.
WPCubed
WPCubed GmbH is a privately owned company based in Munich, Germany. WPCubed have been providing development tools since 1996. Their flagship product is WPTools, a well known and successful word-processing component suite. Their PDF products, which have been available since 2000, are also used by thousands of developers worldwide. Although mainly supporting Delphi and C++Builder, WPCubed are expanding to other platforms to give more developers access to their powerful tools. The recently introduced PDFControl and RTF2PDF DLL's, allow access to PDF technology for almost any developer.