Moodle is a powerful learning management system that provides educators and learners with a robust set of tools for building and administrating collaborative learning environments. When integrated into Moodle, GroupDocs.Viewer enables both educators and learners to view and securely share documents, drawings and images in more than 50 different file formats – all from within Moodle environment and without having to install original software used to create the files....types include: PDF and Microsoft Word documents, Excel spreadsheets...of security, you can add watermarks to protect the documents...