Printing PDF Files Shows Some Wierd Lines

        public void PrintPDFFile(string pdfFile, double dblPWidth, double dblPHeight, int intCopies)
        {
            int intPrintOPT;
            string strCustomPrinter;
            string dllFile = isIDE ? @"d:\My Work\Visual Studio\DLL.NET\QPL\DLL\DebenuPDFLibraryDLL1811.dll" : $@"{exePath}\DebenuPDFLibraryDLL1811.dll";
            DPL_v1811.PdfModule pdfLib = new DPL_v1811.PdfModule(dllFile, dplKey);
            pdfLib.LoadFromFile(pdfFile, "");
            int docId = pdfLib.SelectedDocument();
            pdfLib.NormalizePage(0);
            pdfLib.CombineContentStreams();
            intPrintOPT = pdfLib.PrintOptions(0, 0, Application.ProductName);
            strCustomPrinter = GetCustomPrinterConfig(ref pdfLib, dblPWidth, dblPHeight, intCopies);
            pdfLib.PrintDocument(strCustomPrinter, 1, pdfLib.PageCount(), intPrintOPT);
            pdfLib.RemoveDocument(docId);
            pdfLib.ReleaseLibrary();
        }

        private string GetCustomPrinterConfig(ref DPL_v1811.PdfModule objRPDF, double dblPageWidth, double dblPageHeight, int intCopies)
        {
            string strPrinterConfig;
            int intWidth, intHeight, intLayout;
            intWidth = (int)Math.Round(25.4d * dblPageWidth * 10d);
            intHeight = (int)Math.Round(25.4d * dblPageHeight * 10d);
            intLayout = intWidth < intHeight ? 1 : 2;
            intLayout = 1;
            strPrinterConfig = objRPDF.NewCustomPrinter(objRPDF.GetDefaultPrinterName());
            objRPDF.SetupCustomPrinter(strPrinterConfig, 1, 0); // REM custom paper size
            objRPDF.SetupCustomPrinter(strPrinterConfig, 2, intHeight); // REM custom paper height
            objRPDF.SetupCustomPrinter(strPrinterConfig, 3, intWidth); // REM custom paper width
            objRPDF.SetupCustomPrinter(strPrinterConfig, 4, intCopies); // REM number of copies
            objRPDF.SetupCustomPrinter(strPrinterConfig, 5, 300); // REM quality 1 = high, 2 = medium, 3 = low, 4 = draft, Or Exact DPI
            objRPDF.SetupCustomPrinter(strPrinterConfig, 6, 2); // REM Color 1 = monochrome, 2 = Color
            objRPDF.SetupCustomPrinter(strPrinterConfig, 11, intLayout); // REM 1 = portrait, 2 = landscape
            return strPrinterConfig;
        }
and following line call the print funcion:
PrintPDFFile(filePath, 8.50, 11, 3);