i use the dll convert the ps file to pdf ,follow is my code
// GhostscriptVersionInfo gv = new GhostscriptVersionInfo(@"C:\SharePrinter\gsdll32.dll");
GhostscriptVersionInfo gv = GhostscriptVersionInfo.GetLastInstalledVersion();
GhostscriptProcessor processor = new GhostscriptProcessor(gv, true);
List<string> switches = new List<string>();
switches.Add("-empty");
switches.Add("-dQUIET");
switches.Add("-dSAFER");
switches.Add("-dBATCH");
switches.Add("-dNOPAUSE");
switches.Add("-dEPSCrop");
switches.Add("-sDEVICE=pdfwrite");
switches.Add("-sOutputFile=" + txtFilename);
switches.Add("-f");
switches.Add(psFilename);
processor.StartProcessing(switches.ToArray(), null);
i get An error occured when call to 'gsapi_init_with_args' is made: -100