Can any of (or a combination of) your components be used from within an ASP.NET web page to convert Word Docs to PDF on the fly? Thanks.
You need Aspose.Word and Aspose.Pdf to do that.
For an example see http://www.aspose.com/Products/Aspose.Word/Api/Aspose.Word.SaveFormat.html. Also see the demo project included in the product installer.