GroupDocs.Viewer for Node.Js via Java is a powerful document viewer API which supports over 100 document types. View PDF, DOC, PPT, ODT, OTT, ODP among many other documents in HTML5, Image or PDF modes with fast and high quality rendering. Choose your own rendering strategy by processing document page-by-page, entire document at once or a custom pages range. Customize document appearance via additional rendering options by adding watermarks, rotating and reordering pages, extracting ...