print to pdf - what can i do inside PrintPage Event...

printToPDF_printPage_example.txt

/* 
i pass image into  my print fucntion  .. which is  webbrowser HTML to Image.
to print that image you have to  use that  "PrintPage Event  -> e.DrawImage "

*/  
        public static void Print(this Image image, string printerName, string printFileName)
        {
            if (printerName == null)
            {
                throw new ArgumentNullException("Printer cannot be null.", nameof(printerName));
            }

            using (PrintDialog printDialog = new PrintDialog())
            {
                using (PrintDocument printDoc = new PrintDocument())
                {
                    printDialog.Document = printDoc;
                    printDialog.Document.DocumentName = "My Document";
                    printDialog.Document.OriginAtMargins = false;
                    printDialog.PrinterSettings.PrinterName = printerName;

                    //-- if selected printer is  "print to PDF" ,  save to file Without Promting Dialog
                    //-- its annoying to write naems for 100 pdf files....
                    //printDialog.Document.PrinterSettings.PrintFileName = PathFn.CreatePath_toDesktop("invoice.pdf");
                    if (printerName == "Microsoft Print to PDF")
                    {
                        var printFileName_pdf = Path.ChangeExtension(printFileName, ".pdf");
                        printDialog.Document.PrinterSettings.PrintFileName = PathFn.CreatePath_toDesktop(printFileName_pdf);
                        printDialog.Document.PrinterSettings.PrintToFile = true;
                        printDialog.PrinterSettings.PrintToFile = true;
                    }
                    


                    printDoc.PrintPage += (sender, e) =>
                    {
                        // Draw Image to PrintDoc -- fit image to Page Bound - keep AspectRatio
                        (image as Bitmap).SetResolution(300, 300);
                        //var NewSize = image.Size.FitToBound(e.MarginBounds.Size);
                        var NewSize = image.Size.FitToBound(e.PageSettings.PrintableArea.Size.ToSize());
                        e.Graphics.DrawImage(image, 0, 0, NewSize.Width, NewSize.Height);
                    };

                 
                  printDoc.Print();
                   
                }
            }
        }