Multiple Page Have Same Footer In PDF File (IText Sharp) ASP.NET Using Handler

<%@ WebHandler Language="C#" Class="PrintFile" %>

using System;
using System.Web;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
using System.IO;
using iTextSharp.text.pdf;
using iTextSharp.text;
using System.Collections;


public class PrintFile : IHttpHandler
{
    public string Code1;
    public void ProcessRequest(HttpContext context)
    {
        try
        {
            String tableName = NewEcryptDecrypt.DecryptString(context.Request.QueryString["URL"]);

            byte[] bytes;
            string fileName, contentType;
            string constr = ConfigurationManager.ConnectionStrings["AppConStr"].ConnectionString;

            using (SqlConnection con = new SqlConnection(constr))
            {
                using (SqlCommand cmd = new SqlCommand())
                {
                    cmd.CommandText = "SELECT * FROM " + tableName + " WHERE Id=@Id";
                    cmd.Parameters.AddWithValue("@Id", id);
                    cmd.Connection = con;
                    con.Open();
                    using (SqlDataReader sdr = cmd.ExecuteReader())
                    {
                        sdr.Read();
                        bytes = (byte[])sdr["FileData"];
                        contentType = sdr["ContentType"].ToString();
                        fileName = sdr["FileName"].ToString();

                        int TotalPage = 0;
                        if (contentType == "Application/pdf" || contentType == "Application/PDF")
                        {
                            System.IO.MemoryStream memoryStream = new System.IO.MemoryStream();
                            PdfReader reader1 = new PdfReader(bytes);
                            using (PdfStamper stamper = new PdfStamper(reader1, memoryStream))
                            {
                                int pages = reader1.NumberOfPages;
                                TotalPage = pages;
                                for (int i = 1; i <= pages; i++)
                                {

                                    float factor = .92f;
                                    shrink(stamper, i, factor);

                                    Rectangle box = reader1.GetCropBox(i);
                                    box.Top = box.Top - factor * box.Height;

                                    PdfContentByte cb = stamper.GetOverContent(i);
                                    cb.SetColorFill(BaseColor.YELLOW);
                                    cb.SetColorStroke(BaseColor.BLACK);
                                    cb.Rectangle(box.Left, box.Bottom, box.Width, box.Height);
                                    cb.FillStroke();
                                    cb.SetColorFill(BaseColor.BLACK);

                                    ColumnText ct = new ColumnText(cb);

                                    ct.AddElement(new Paragraph("  You can varify this 7/12 from this URL(GSWAN) http://10.110.3.98/web" + " Enter code : " + code, FontFactory.GetFont("Calibri", 11, Font.BOLD)));
                                    ct.AddElement(new Paragraph("  Issued By: " + OfficeName + " " + "       Print Date:" + DateTime.Now + "   " + "5 Rs per Side", FontFactory.GetFont("Calibri", 11, Font.BOLD)));

                                    ct.SetSimpleColumn(box);
                                    ct.Go();
                                }

                            }
                            bytes = memoryStream.GetBuffer();
                            memoryStream.Flush();
                            memoryStream.Dispose();

                            bytes = memoryStream.ToArray();
                        }
                        con.Close();
                    }
                }

                context.Response.Buffer = true;
                context.Response.Charset = "";

                if (context.Request.QueryString["download"] == "1")
                {
                    context.Response.AppendHeader("Content-Disposition", "attachment; filename=" + fileName);
                }
                context.Response.Cache.SetCacheability(HttpCacheability.NoCache);
                context.Response.ContentType = contentType;
                context.Response.BinaryWrite(bytes);
                context.Response.Flush();
                context.Response.End();
            }
        }
        catch (Exception e)
        {

        }
    }



    public bool IsReusable
    {
        get
        {
            return false;
        }
    }

    public void shrink(PdfStamper stamper, int page, float factor)
{
    Rectangle crop = stamper.Reader.GetCropBox(page);
    float diffX = crop.Right * (1 - factor);
    float diffY = crop.Top * (1 - factor);
    PdfDictionary pageN = stamper.Reader.GetPageN(page);
    stamper.MarkUsed(pageN);
    PdfArray ar = null;
    PdfObject content = PdfReader.GetPdfObject(pageN.Get(PdfName.CONTENTS), pageN);
    if (content == null)
        return;
    if (content.IsArray())
    {
        ar = new PdfArray((PdfArray)content);
        pageN.Put(PdfName.CONTENTS, ar);
    }
    else if (content.IsStream())
    {
        ar = new PdfArray();
        ar.Add(pageN.Get(PdfName.CONTENTS));
        pageN.Put(PdfName.CONTENTS, ar);
    }
    else
        return;
    ByteBuffer out_p = new ByteBuffer();
    out_p.Append(factor).Append(" 0 0 ").Append(factor).Append(' ').Append(diffX).Append(' ').Append(diffY).Append(" cm ");
    PdfStream stream = new PdfStream(out_p.ToByteArray());
    ar.AddFirst(stamper.Writer.AddToBody(stream).IndirectReference);
    out_p.Reset();
}


}