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   procedure TForm1.Button1Click(Sender: TObject);
   var
     RVal : Integer;
     DPSDK, DPPPT,
     MSPowerPoint,
     PPTDoc          : Variant;
     docToConvert    : String;
   begin

      docToConvert:='c:\users\public\test.ppt';

      try
        DPSDK:=CreateOleObject('docuPrinter.SDK');
        DPSDK.DocumentOutputFormat:= 'PDF';
        DPSDK.DocumentOutputName:= 'demoPPT2';
        DPSDK.DocumentOutputFolder:= 'c:\users\public\';

        DPSDK.PDFAutoRotatePage:= 'PageByPage';
        DPSDK.HideSaveAsWindow:= true;
        DPSDK.DefaultAction:=1;
        DPSDK.ApplySettings;

        try
          DPPPT:= CreateOleObject('docuPrinter.PowerPointMacro');

          DPPPT.CTransition:=true;
          DPPPT.CHBookmarks:=true;
          DPPPT.CInternetLink:=true;
          DPPPT.CDocInfo:=true;
          RVal:= DPPPT.ConvertDocument( docToConvert );

          If (RVal <> 0) Then 
            ShowMessage('Error while converting!!! Code: '+IntToStr(RVal))
          else
            ShowMessage('Document Converted!!!');

        except
          on E: Exception do
            ShowMessage(E.Message);
        end;
      finally
        DPPPT:= Unassigned;
        DPSDK:= Unassigned;
      end;  

   end;