I want to print panel in middle of A4 size paper.

private void myPrintDocument2_PrintPage(System.Object sender, System.Drawing.Printing.PrintPageEventArgs e)
        {
            Bitmap myBitmap1 = new Bitmap(panel.Width, panel.Height);
            panel.DrawToBitmap(myBitmap1, new Rectangle(0, 0, panel.Width, panel.Height));
            e.Graphics.DrawImage(myBitmap1, 0, 0);
            myBitmap1.Dispose();
        }

        private void print(object sender, EventArgs e)
        {
            System.Drawing.Printing.PrintDocument myPrintDocument1 = new System.Drawing.Printing.PrintDocument();
            myPrintDocument1.PrintPage += new System.Drawing.Printing.PrintPageEventHandler(myPrintDocument2_PrintPage);
            myPrintDocument1.Print();
        }