string WriteText = "Copyright 2008";
img = Image.FromFile("D://pic.jpg");
int imgHeight = img.Height;
int imgWidth = img.Width;
Graphics g = Graphics.FromImage(img);
Font f = new Font("Arial", 10);
Brush b = new SolidBrush(Color.Red);
g.DrawString("Copyright 2008", f, b, 10, imgHeight - 30);//从左下角开始
g.DrawString(WriteText, f, b, imgWidth - 100 - WriteText.Length, imgHeight - 30);//从右下角开始
g.DrawString(WriteText, f, b, imgWidth / 2, imgHeight - 30);//从中间开始
Point p = new Point(10, 10);
Graphics gp = this.CreateGraphics();//输出在winform页中
gp.DrawImage(img, p);
--------------------------
try
{
string WriteText = "Copyright 2008";
//网络路径
WebRequest webRQ = WebRequest.Create("http://pd.7ye.net/1/277/70943/77935-0l.jpg");
WebResponse webRP = webRQ.GetResponse();
System.Drawing.Image bitimage = System.Drawing.Image.FromStream(webRP.GetResponseStream());
//本地路径
//System.Drawing.Image bitimage = System.Drawing.Image.FromFile("D://pic8.jpg");
int imgHeight = bitimage.Height;
int imgWidth = bitimage.Width;
Graphics g = Graphics.FromImage(bitimage);
Font f = new Font("Arial", 10);
Brush b = new SolidBrush(Color.Red);
g.DrawString("Copyright 2008", f, b, 10, imgHeight - 30);//从左下角开始
g.DrawString(WriteText, f, b, imgWidth - 100 - WriteText.Length, imgHeight - 30);//从右下角开始
g.DrawString(WriteText, f, b, imgWidth / 2, imgHeight - 30);//从中间开始
Point p = new Point(10, 10);
//webform中输出,根据image对象
System.IO.MemoryStream ms = new System.IO.MemoryStream();
System.Drawing.Image img1 = bitimage;
img1.Save(ms, System.Drawing.Imaging.ImageFormat.Gif);
byte[] msbyte = new byte[ms.Length];
ms.Position = 0;
ms.Read(msbyte, 0, msbyte.Length);
ms.Close();
Response.BinaryWrite(msbyte);
}
catch (Exception ex)
{
Response.Write(ex.ToString());
}
//webform中输出，指定路径
//FileStream fs = new FileStream("D://pic8.jpg", FileMode.Open);
//byte[] byData = new byte[fs.Length];
//fs.Read(byData, 0, byData.Length);
//fs.Close();
//Response.ContentType = "image/JPEG";
//Response.BinaryWrite(byData);