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.
ComPDFKit
ComPDFKit enable developers to integrate PDF Annotations and Format Conversion, Digital Signature, Smart Forms, OCR, Redaction, and more in to their applications on Windows, macOS, iOS, Android, and the web through their PDF SDKs. Their aim is to offer the most comprehensive library to shorten the project development cycle and to continuously improve their SDK products to meet developer's future requirements as they change and projects evolve.
Karsa Technologies
Karsa Technologies is one of the worldwide leaders in providing easy to use and powerful database full text search extensions for Microsoft SQL Server. Karsa Full text is a full text component thanks to which you can easily install a sophisticated full text search function into your web or desktop application.