Hello Forum,

how do I create watermark text on image to save

when saving it will save the image with the watermark label text on it?

C#

    protected void Button1_Click(object sender, EventArgs e)
    {
        // Read the file and convert it to Byte Array

        string email = string.Empty;

        string filePath = FileUpload1.PostedFile.FileName;

        string filename = Path.GetFileName(filePath);

        string ext = Path.GetExtension(filename);

        string contenttype = string.Empty;

        int size = FileUpload1.FileBytes.Length;


        //Set the contenttype 
        if (ext == ".jpg" || ext == ".png")
        {
            contenttype = "image/jpg";
        }

        if (contenttype != string.Empty)

        {
            Stream fs = FileUpload1.PostedFile.InputStream;

            BinaryReader br = new BinaryReader(fs);

            Byte[] bytes = br.ReadBytes((Int32)fs.Length);


            //insert the file into database
            string sql = "INSERT INTO CardTbl(email, Name, Contyp, Size, image, Uid, CreatedBy, Role, CreatedDate, Organization)" +

               " VALUES(@email, @Name, @ContentType, @Size, @image, @Uid, @CreatedBy, @Role, @CreatedDate, @Organization); SELECT @@IDENTITY";

            SqlParameter[] parameters = new[]
            {
                    new SqlParameter("@email", user.Text.Trim()),
                    new SqlParameter("@Name",filename ),
                    new SqlParameter("@ContentType",contenttype ),
                    new SqlParameter("@Size",size ),
                    new SqlParameter("@image",bytes ),
                    new SqlParameter("@Uid", labelid.Text.Trim()),
                    new SqlParameter("@CreatedBy", createby.Text.Trim()),
                    new SqlParameter("@Role", role.Text.Trim()),
                    new SqlParameter("@CreatedDate", DateTime.Now),
                    new SqlParameter("@Organization", named.Text.Trim())

                };
            int id = ExecuteScalar(sql, parameters);
            Session["CardId"] = id;
            //   Session["user"] = id;

            if (id != -1)
            {
                lblMessage.ForeColor = System.Drawing.Color.Green;

                lblMessage.Text = "File Uploaded Successfully";

                // Return a QR pic
                BindCardAndQR();

            }
            else
            {
                lblMessage.ForeColor = System.Drawing.Color.Red;
                lblMessage.Text = "File Uploaded Failed";
            }
        }

        else
        {
            lblMessage.ForeColor = System.Drawing.Color.Red;

            lblMessage.Text = "File format not recognised." + "JPG/PNG Formats ONLY";
        }
    }
    public byte[] GetQRCodeBytes(string url)
    {
        QRCodeEncoder encoder = new QRCodeEncoder();
        Bitmap bi = encoder.Encode(url);
        MemoryStream tmpSteam = new MemoryStream();
        bi.Save(tmpSteam, ImageFormat.Jpeg);
        return tmpSteam.ToArray();

    }