Adding header and footer and aslo page number to pdf

Question

In my application i'm exporting datatable data to pdf using itextsharp its working fine now i want to add header and footer to it and aslo i want to add page number to it and aslo i want the header to contain name as report in all the page.How can i do that i have written the code like this: public void ExportToPdf(DataTable ExDataTable) {        //Here set page size as A4        Document pdfDoc = new Document(PageSize.A4, 10, 10, 10, 10);          try        {            PdfWriter.GetInstance(pdfDoc, System.Web.HttpContext.Current.Response.OutputStream);            pdfDoc.Open();              //Set Font Properties for PDF File            Font fnt = FontFactory.GetFont("Times New Roman", 6);              DataTable dt = ExDataTable;              if (dt != null)            {                PdfPTable PdfTable = new PdfPTable(dt.Columns.Count);                  PdfPCell PdfPCell = null;                  //Here we create PDF file tables                for (int rows = 0; rows < dt.Rows.Count; rows++)              {                    if (rows == 0)                    {                        for (int column = 0; column < dt.Columns.Count; column++)                        {                            PdfPCell = new PdfPCell(new Phrase(new Chunk(dt.Columns[column].ColumnName.ToString(), fnt)));                            PdfTable.AddCell(PdfPCell);                        }                    }                    for (int column = 0; column < dt.Columns.Count; column++)                    {                        PdfPCell = new PdfPCell(new Phrase(new Chunk(dt.Rows[rows][column].ToString(), fnt)));                        PdfTable.AddCell(PdfPCell);                    }                }                  // Finally Add pdf table to the document               pdfDoc.Add(PdfTable);            }              pdfDoc.Close();              Response.ContentType = "application/pdf";              //Set default file Name as current datetime          Response.AddHeader("content-disposition", "attachment; filename=" + "Line-Shift Report" + ".pdf");              System.Web.HttpContext.Current.Response.Write(pdfDoc);              Response.Flush();            Response.End();          }        catch (Exception ex)        {            Response.Write(ex.ToString());        }    }  protected void Button1_Click1(object sender, EventArgs e) {     if (Session["source_table"] != null)        {            ExportToPdf(Session["source_table"] as DataTable);        }        else      {            Response.Write("No data to Export!");        }    }  Can any1 help me on this