TkczG6Gs

Creating Document Images
public void CreateNotificationImage(string imagePath, NotificationData data)
{
    // CreateDocument() is my own method where a new doc is created with new data
    Document doc = CreateDocument(data);
    doc.DefaultPageSetup.PageFormat = PageFormat.Letter;

    int page = 1;
    DocumentRenderer renderer = new DocumentRenderer(doc);
    renderer.PrepareDocument();
    PageInfo pageInfo = renderer.FormattedDocument.GetPageInfo(page);

    int dpi = 150;
    int dx  = (int)(pageInfo.Width.Inch * dpi);
    int dy  = (int)(pageInfo.Height.Inch * dpi);
    float scale = dpi / 72f;

    System.Drawing.Image image = new Bitmap(dx, dy, PixelFormat.Format32bppRgb);

    using (Graphics graphics = Graphics.FromImage(image))
    {
        graphics.Clear(System.Drawing.Color.White);
        graphics.ScaleTransform(scale, scale); // scale to 72dpi

        using (XGraphics gfx = XGraphics.FromGraphics(graphics, new XSize(Unit.FromInch(8.5).Point, Unit.FromInch(11).Point)))
        {
            renderer.RenderPage(gfx, page);
            WriteTiffImage(imagePath, image);
        }
    }
}

private void WriteTiffImage(string targetPath, System.Drawing.Image image)
{
    Encoder        encoder  = Encoder.SaveFlag;
    ImageCodecInfo tiffInfo = ImageCodecInfo.GetImageEncoders()
                              .Where(e => e.MimeType == "image/tiff")
                              .FirstOrDefault();

    EncoderParameters encoderParams = new EncoderParameters(1);
    encoderParams.Param[0] = new EncoderParameter(encoder, (long)EncoderValue.MultiFrame);

    image.Save(targetPath, tiffInfo, encoderParams);

    // close file
    encoderParams.Param[0] = new EncoderParameter(encoder, (long)EncoderValue.Flush);
    image.SaveAdd(encoderParams);
}