Thank you for your request.
Our GroupDocs.Viewer for Java library has getDocumentPageImageHandler method in the ViewerHandler class, this method will return a stream of the image of the document page . So you should call this method to get the image and then place it where you need on the web page
Note: We have released new generation of the GroupDocs.Viewer for Java library and you can download it from here
If you will have more questions please feel free to contact us.
Your Document Collaboration APIs
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