hi 

I used below code to upload image and put watermark on it

 protected void BtnUpload_Click(object sender, EventArgs e)
    {
        uploadImageError.Visible = true;
        if (fup1.HasFile && fup1.PostedFile.ContentLength < 102400)
        {
            string watermarkText = "behtop.com";
            string path = Server.MapPath("~/image/House/product/");
            string fileName = System.IO.Path.GetFileName(fup1.PostedFile.FileName);
            if (Array.IndexOf(new string[] { ".jpg", ".png" }, System.IO.Path.GetExtension(fup1.PostedFile.FileName).ToString().ToLower()) < 0)
            {
                uploadImageError.Text = "*لطفاً عکس با فرمت Png.* و Jpg.* آپلود نمایید.";
                return;
            }
            while (System.IO.File.Exists(path + "\\" + fileName))
            {
                fileName = "1" + fileName;
            }


            using (Bitmap bmp = new Bitmap(fup1.PostedFile.InputStream, false))
            {
                using (Graphics grp = Graphics.FromImage(bmp))
                {
                    //Set the Color of the Watermark text.
                    Brush brush = new SolidBrush(Color.FromArgb(50, 255, 255, 255));


                    //Set the Font and its size.
                    Font font = new System.Drawing.Font("tahoma", 30, FontStyle.Bold, GraphicsUnit.Pixel);

                    //Determine the size of the Watermark text.
                    SizeF textSize = new SizeF();
                    textSize = grp.MeasureString(watermarkText, font);

                    //Position the text and draw it on the image.
                    Point position = new Point((bmp.Width - ((int)textSize.Width + 100)), (bmp.Height - ((int)textSize.Height + 100)));
                    grp.DrawString(watermarkText, font, brush, position);

                    using (MemoryStream memoryStream = new MemoryStream())
                    {
                        //Save the Watermarked image to the MemoryStream.
                        bmp.Save(memoryStream, ImageFormat.Png);
                        memoryStream.Position = 0;

                        //Start file download.
                        Response.Clear();
                        Response.ContentType = "image/png";
                        Response.AddHeader("Content-Disposition", "attachment; filename=" + fileName);
                        //Write the MemoryStream to the Response.
                        memoryStream.WriteTo(Response.OutputStream);
                        Response.Flush();
                        Response.Close();
                        Response.End();

                        fup1.PostedFile.SaveAs(path + fileName);
                        ViewState["Id"] = House_p.SaveImageName(fileName, Session["behcode"].ToString(), Convert.ToInt32(ViewState["Id"]));
                        uploadImageError.Text = "*عکس شما با موفقیت بارگذاری شد";
                        this.imgProduct.ImageUrl = GetThumbNail("~/image/house/product/" + fileName);
                        lblProduct.Visible = upUploadImage.Visible = !(btnDeleteImage.Visible = imgProduct.Visible = true);
                        lblErrorSubmit.Text = " ";

                    }
                }
            }




         
        }
        else
        {
            uploadImageError.Text = "*حجم فایل شما" + Convert.ToString(fup1.PostedFile.ContentLength / 1024) + "KB می باشد لطفاعکس با حجم کمتر از100 KB آپلود نمایید.";
        }
    }

problem is when I upload image and click on btnupload it shows image in new window with watermark text but it doesn't save it into host...

I want when I click on btnupload it doesn't show image in new window I want it just uploaded image with watermark into host...

How I can do it?

best regards

neda