public static FileStream DownloadFile(string path)
        {
            var        filePath = pathFinder.GetApplicationPath() + "_layouts/15/GroupDocs_Annotation_SharePoint_WebPart/App_Data/" + path;
            FileStream ff       = File.OpenRead(filePath);

            return(ff);
        }
        public AnnotationScripts()
        {
            var pathFinder = new ApplicationPathFinder();

            _appPath = pathFinder.GetApplicationPath() + "_layouts/15/GroupDocs_Annotation_SharePoint_WebPart/";

            _scriptTemplate = string.Format("<script type='text/javascript' src='{0}{1}Scripts/{{1}}'></script>",
                                            _appPath, _urlPrefix);

            _stylesheetTemplate = string.Format("<link rel='stylesheet' type='text/css' href='{0}{1}CSS/{{1}}' />",
                                                _appPath, _urlPrefix);
        }