Hello,

Please, find attached a sample project demonstrating how you can export the content of RadRichtextBox (http://docs.telerik.com/devtools/wpf/controls/radrichtextbox/overview) to an image. We have already logged an item to provide a similar functionality out-of-the-box and you can vote for its implementation at https://feedback.telerik.com/Project/143/Feedback/Details/134556.

To export a PDF document to an image, I would suggest you use RadPdfViewer (http://docs.telerik.com/devtools/wpf/controls/radpdfviewer/overview). A detailed example of how to implement the export is available at http://www.telerik.com/forums/convert-pdf-to-jpg#ef5qmybbrESul6lsfjhlXQ

The DOC format is currently not supported. You can upvote the feature request through the related item at https://feedback.telerik.com/Project/143/Feedback/Details/135532.

In case you need any further assistance on implementing the desired scenarios, you can use our ticketing system (https://www.telerik.com/account/support-tickets) to contact the support team.

Regards,
Tanya