With Viscomsoft .NET PDF Viewer SDK , the developer can easily add pdf, tiff viewer capability to their applications. Load and view PDF document. Load and view TIFF, XPS document, JPEG, PNG image files. (need TIFF, XPS,JPEG, PNG plugins) Support two-page facing view. Support Full Screen mode. Support zoom in, zoom out, Fit Page, Actual Size, Fit Width, Fit Height and Zoom to a specified ratio.. Full Unicode support