How to create main header and sub header in iTextsharp?

See more:

C#

WPF

MVVM

itextsharp

.NET4.6

I want to modify the output of my code.
I used WPF framewrok with MVVM pattern. I used iTextSharp dll to export my view to pdf but I don't have any idea on how to include main header along with sub header in my pdf output. Is main header along with sub header possible in my code.

What I have tried:

using iTextSharp.text;
using iTextSharp.text.pdf;
using Microsoft.Win32;
using System.Diagnostics;
using System.IO;
using System.Windows.Controls;

namespace FasApp.UI.Views
{
   /// <summary>
   /// Interaction logic for GeneralLedgerView.xaml
   /// </summary>
   public partial class GeneralLedgerView : UserControl
   {
      public GeneralLedgerView()
      {
         InitializeComponent();
      }

      private void ExportToPdf_GeneralLedger(object sender, System.Windows.RoutedEventArgs e)
      {
         SaveFileDialog dlg = new SaveFileDialog
         {
            DefaultExt = ".pdf",
            Filter = "Adobe PDF Files(*.pdf)|*.pdf",
            FilterIndex = 1
         };

         string fileName = string.Empty;

         if (dlg.ShowDialog() == true)
         {
            fileName = dlg.FileName;
            Document doc = new Document();
            PdfPTable tableLayout = new PdfPTable(5);
            PdfWriter.GetInstance(doc, new FileStream(fileName, FileMode.Create));
            doc.Open();
            doc.Add(Add_Content_To_PDF(tableLayout));
            doc.Close();
            Process.Start(fileName);
         }
      }

      private PdfPTable Add_Content_To_PDF(PdfPTable tableLayout)
      {
         float[] headers = { 15, 40, 15, 15, 15 };
         tableLayout.SetWidths(headers);
         tableLayout.WidthPercentage = 80;

         tableLayout.AddCell(new PdfPCell(new Phrase("Statement of Financial Position", new Font(Font.NORMAL, 13, 1, new iTextSharp.text.BaseColor(153, 51, 0)))) { Colspan = 5, Border = 0, PaddingBottom = 5, HorizontalAlignment = Element.ALIGN_CENTER });
         tableLayout.AddCell(new PdfPCell(new Phrase("December 31, 2018", new Font(Font.NORMAL, 10, 1, new iTextSharp.text.BaseColor(153, 51, 0)))) { Colspan = 5, Border = 0, PaddingBottom = 20, HorizontalAlignment = Element.ALIGN_CENTER });

         AddCellToHeader(tableLayout, "Date");
         AddCellToHeader(tableLayout, "Particulars");
         AddCellToHeader(tableLayout, "Debit");
         AddCellToHeader(tableLayout, "Credit");
         AddCellToHeader(tableLayout, "Balance");

         AddCellToBody(tableLayout, "1/1/18");
         AddCellToBody(tableLayout, "Beginning Balance");
         AddCellToBody(tableLayout, "100.00");
         AddCellToBody(tableLayout, "");
         AddCellToBody(tableLayout, "100.00");

         AddCellToBody(tableLayout, "");
         AddCellToBody(tableLayout, "");
         AddCellToBody(tableLayout, "");
         AddCellToBody(tableLayout, "300.00");
         AddCellToBody(tableLayout, "200.00");

         return tableLayout;
      }

      // Method to add single cell to the header

      private static void AddCellToHeader(PdfPTable tableLayout, string cellText)
      {
         tableLayout.AddCell(new PdfPCell(new Phrase(cellText, new Font(Font.NORMAL, 8, 1, iTextSharp.text.BaseColor.WHITE))) { HorizontalAlignment = Element.ALIGN_CENTER, Padding = 5, BackgroundColor = new iTextSharp.text.BaseColor(0, 51, 102) });
      }

      private static void AddCellToBody(PdfPTable tableLayout, string cellText)
      {
         tableLayout.AddCell(new PdfPCell(new Phrase(cellText, new Font(Font.NORMAL, 8, 1, iTextSharp.text.BaseColor.BLACK))) { HorizontalAlignment = Element.ALIGN_CENTER, Padding = 5, BackgroundColor = iTextSharp.text.BaseColor.WHITE });
      }
   }
}