The logon type used with PDFPop is controlled by the Web Server's Web.config file. The logon logic checks Web.config to see whether any of the Hyland.Web.PdfPop variables are true in this order: enableAutoLogin, enableHTTPLogin, enableDefaultLogin. The first key found to be true is then used. If the logon fails, the user is presented with a logon screen so that valid credentials may be supplied. If enableAutoLogin is true and the logon fails, a domain logon screen is used.