Adding Text To Image Programmatically With C#

In this article I’ll continue talk about Adding Text To Image using an Extension Method in my previous article.

I’ll provide here a more useful and complete Class to Add Text To Image Programmatically with C#.

WaterMarkImage

This class is able to :

• Add Text to Image
• Render it through a Stream (like HttpContext.Current.Response.OutputStream)
• Render it to Image File

public class WaterMarkImage
{
   #region Private Properties

   private Bitmap OriginalImage { get; set; }

   #endregion

   #region Public Properties

   public Color TextColor { get; set; }
   public Brush BrushStyle { get; set; }
   public Font TextFont { get; set; }
   public String Text { get; set; }
   public PointF Position { get; set; }

   #endregion

   #region Constructors

   public WaterMarkImage(String filename)
       : this(new Bitmap(filename))
   {
   }
   public WaterMarkImage(Bitmap bmp)
   {
       OriginalImage = bmp;
       TextColor = Color.White;
       BrushStyle = new SolidBrush(TextColor);
       TextFont = new Font("Arial", 18, FontStyle.Bold);
   }

   #endregion

   #region Public Methods

   public Bitmap Process()
   {
       Bitmap tmp = new Bitmap(OriginalImage);
       using (Graphics graphic = Graphics.FromImage(tmp))
       {
           if (Position == null)
           {
               Position = new PointF(10, 30);
           }
           graphic.DrawString(Text, TextFont, BrushStyle, Position);
       }
       return tmp;
   }
   public void WriteTo(Stream stream)
   {
       Bitmap bmp = Process();
       if (bmp == null) return;
       bmp.Save(stream, ImageFormat.Jpeg);
   }
   public void WriteTo(String filename)
   {
       Bitmap bmp = Process();
       if (bmp == null) return;
       bmp.Save(filename, ImageFormat.Jpeg);
   }

   #endregion
}