title: Adding Height to Image for Subtitle
body: <p>i want to add an additonal height to an Image to give it a subtitle.
  I do not want to "compres" or resize my original image.
  I want to keep it's size and add +40 px to its height on bottom and add a text like <a href="http://i.imgur.com/ua3T6.jpg" rel="nofollow">this example</a></p>
  
  <p>The red part is the original image.
  The blue part is my addition.</p>
  
  <p>I tried this code but my text appears "outside" the image i think.</p>
  
  <pre><code>Image image = Image.FromFile("D:\\my_sample_image.jpg");
  // Create graphics from image
  Graphics graphics = Graphics.FromImage(image);
  // Create font
  Font font = new Font("Times New Roman", 42.0f);
  // Create text position
  PointF point = new PointF(150, image.Height+40);
  // Draw text
  graphics.DrawString("Watermark", font, Brushes.Red, point);
  // Save image
  image.Save("D:\\my_sample_output.jpg");
  MessageBox.Show("FINISHED");
  // Open generated image file in default image viewer installed in Windows
  Process.Start("D:\\my_sample_output.jpg");
  </code></pre>