PDFSharp Move Origin Example - Text Upside Down

 public void moveOrigin()
{
    // Create a new PDF document
    PdfDocument document = new PdfDocument();

    // Create an empty page
    PdfPage page = document.AddPage();

    // Get an XGraphics object for drawing
    XGraphics gfx = XGraphics.FromPdfPage(page);

    gfx.ScaleTransform(1, -1);
    gfx.TranslateTransform(0, -792);

    XFont memberLabelFont = new XFont("Verdana", 10, XFontStyle.Regular);
    XTextFormatter memberLabelTextFormatter = new XTextFormatter(gfx);
    memberLabelTextFormatter.Alignment = XParagraphAlignment.Center;

    gfx.DrawString("Hello, World!", memberLabelFont, XBrushes.Black,
        new XRect(0, 0, page.Width, page.Height),
        XStringFormats.TopLeft);

    // Save the document...
    const string filename = "HelloWorld.pdf";
    document.Save(filename);
    // ...and start a viewer.
    Process.Start(filename);
}