// For complete examples and data files, please go to https://github.com/groupdocs-viewer/GroupDocs.Viewer-for-.NET
// Setup GroupDocs.Viewer config
ViewerConfig config = Utilities.GetConfigurations();
// Init viewer image or html handler
ViewerImageHandler viewerImageHandler = new ViewerImageHandler(config);
//Clear files from cache older than specified time interval
viewerImageHandler.ClearCache(OlderThanDays);