Rendering the first page of a word document as an image in both .NET and Java

We're working on a content management system where we need to dynamically show the first page of a word do开发者_运维技巧cument as a thumbnail. What could be the process to do this using both Java and .NET.

From the Java side, you could use something based on OpenOffice since it has an API and can automatically generate the thumbnail. Docmosis is on option which exposes the thumbnail (TemplateDetails.getThumbnail()), JODReports and JODConverter may also be able to help.