     private void Save_Click(object sender, EventArgs e)
        {
            saveFileDialog1.Filter = "gif Files|*.gif|Bitmap Files|*.bmp|Icon Files|*.ico|Jpg Files|*.jpg|RTL Files|*.rle";
            saveFileDialog1.FilterIndex = openFileDialog1.FilterIndex;
            saveFileDialog1.ShowDialog();
            if (saveFileDialog1.FileName != "")
                pictureBox1.Image.Save(saveFileDialog1.FileName);
       
        }
