Hello, We are using GroupDocs Viewer 2.19 currently and we are trying to upgrade viewer 3.0. But i have some questions. In older version of viewer we can set many parameters like SupportTextSelection,ShowHeader,ShowDow…...look at the migration procedure http://groupdocs.com/docs/displa...GroupDocs.Viewer Downloads: http://groupdocs.com/Community/files/8/...