How to convert word document pages to images

Unfortunately, the client will need to install Microsoft Office to be able to run a program which uses Microsoft Interop components as understood from this post:
https://social.msdn.microsoft.com/Forums/en-US/973ce94f-5235-4be9-a2b1-51ba7d35e1f

Your best option in this case is to search for a third-party library to do the conversion.

The following post shows how you can convert MS Word files to images using Microsoft assemblies:
http://stackoverflow.com/questions/20326478/convert-word-file-pages-to-jpg-images-using-c-sharp

If you’re looking for larger set of target image formats, you can use a professional toolkit such as LEADTOOLS Document Imaging SDK (Disclaimer: I work for LEAD). The conversion can be done using these lines of code: