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.
PDFlib
PDFlib GmbH is completely focused on PDF technology. Customers worldwide use PDFlib products since 1997. The company closely follows development and market trends, such as ISO standards for PDF. PDFlib GmbH products are distributed in more than 100 countries all over the world with major markets in North America, Europe, and Japan.
Iron Software
Iron Software produces quality software component products for C# / VB.Net. Iron’s philosophy puts developers at the heart of every piece of software released. Ease of installation and ease of use are their highest priorities, backed up by customer support directly from the development team. Iron are committed to building only the best examples of software in each niche with every release. Iron concentrate on 2 core product categories: Linguistic and language document software such as PDF and OCR, and Search technologies such as Iron WebScraper.