Aspose.Words is a word processing component that makes it possible for .NET applications to read, write, and modify Word documents without using Microsoft Word. Other useful features include document creation, content and formatting manipulation, mail merge abilities, reporting features, and support for DOCX, DOC, WordprocessingML, HTML, XHTML, TXT, and PDF formats (requires Aspose.Pdf). It supports both 32-bit and 64-bit operating systems.
Aspose.Pdf is a .NET PDF component to write PDF documents without using Adobe Acrobat. It supports form field creation, document, text and page properties, color space, text, heading, and attachment settings. It lets you create PDF documents by using its API with XML templates and XSL-FO files. It also converts HTML, XSL-FO, and MS Word to PDF. Other features include image formats and security features, hyperlinks, the ability to add footnotes, automatic fitting to content in a table, decimal Tab stops, HTML tags, and keeping paragraphs together when breaking pages.
jWordConvert is a Java library which can read and render Word documents natively to convert to PDF, to convert to images, or to print the documents automatically. The library is 100% Java, so it can run on any platform which supports Java. It does not use any third party software or native calls, and can be run in a server environment or integrated into a desktop application.