Thanks.

// new image with transparent Alpha layer
using (var bitmap = new Bitmap(330, 18, PixelFormat.Format32bppArgb))
{
using (var graphics = Graphics.FromImage(bitmap))
{
// add some anti-aliasing
graphics.SmoothingMode = SmoothingMode.AntiAlias;

using (var font = new Font(“Arial”, 14.0f, GraphicsUnit.Pixel))
{
using (var brush = new SolidBrush(Color.White))
{
// draw it
graphics.DrawString(user.Email, font, brush, 0, 0);
}
}
}

// setup the response
Response.Clear();
Response.ContentType = “image/png”;
Response.BufferOutput = true;

// write it to the output stream
bitmap.Save(Response.OutputStream, ImageFormat.Png);
Response.Flush();
}