Create PDF with Header(Image) and Body (Table)

I am having a form with asp panel which contains table under it,I need to create a Header with Image I have done in the following way,but only image is coming,If I try with only panel then its working.I need both of them.Pls help me in this regard.Below is my code,

<asp:Panel ID="pnlPerson" runat="server">
    <table border="1" style="font-family: Arial; font-size: 10pt; width: 200px">
<tr>
            <td colspan="2" style="background-color: #18B5F0; height: 18px; color: White; border: 1px solid white">
                <b>
Payment Confirmation for ProJKRM Membership</b>
            </td>
        </tr>
        <tr>
            <td><b>Name:</b></td>
            <td><asp:Label ID="lblName" runat="server"></asp:Label></td>
        </tr>
  </table>
</asp:Panel>

Code Behind is:
 

            private void Sendpdf(string OrderID)
            {
                ThankYou_BLL obj = new ThankYou_BLL();
                dspdf = obj.ThankUdetails(OrderID);
                if (dspdf.Tables[0].Rows.Count > 0)
                {
                    lblName.Text = dspdf.Tables[0].Rows[0]["FullNme"].ToString();

                    Response.ContentType = "application/pdf";
                    Response.AddHeader("content-disposition", "attachment;filename=Panel.pdf");
                    Response.Cache.SetCacheability(HttpCacheability.NoCache);
                    StringWriter sw = new StringWriter();
                    HtmlTextWriter hw = new HtmlTextWriter(sw);
                    Document pdfDoc = new Document(PageSize.A4, 10f, 10f, 100f, 0f);
                    PdfWriter.GetInstance(pdfDoc, new FileStream(Context.Server.MapPath("~/PdfDoc/ProJKRMMembershipPaymentDetails.pdf"), FileMode.Create));
                    StringReader sr = new StringReader(sw.ToString());
                    pdfDoc.Open();

                    iTextSharp.text.Image png = iTextSharp.text.Image.GetInstance(Server.MapPath("~/Admin/images/logo.png"));
                    pdfDoc.Add(png);
                    HTMLWorker htmlparser = new HTMLWorker(pdfDoc);
                    pnlPerson.RenderControl(hw);
                    htmlparser.Parse(sr);
                    pdfDoc.Close();
                } 

With the above code only image is displaying,panel is unable to load.