Using iTextSharp combines two template files into one pdf and adds table to the pages

CombinePdf.cs

//iTextSharp
using (FileStream fs = new FileStream(AppDomain.CurrentDomain.BaseDirectory + "TableTest.pdf", FileMode.Create))
{
    Document doc = new Document(PageSize.LETTER);
    doc.SetMargins(0, 0, 0, 0);
    PdfWriter writer = PdfWriter.GetInstance(doc, fs);
    doc.Open();

    //add first page
    PdfReader pdfReader = new PdfReader(templatePath + "Page1.pdf");
    PdfImportedPage page = writer.GetImportedPage(pdfReader, 1);
    doc.Add(iTextSharp.text.Image.GetInstance(page));

    PdfContentByte pcb = writer.DirectContent;
    PdfPTable table = new PdfPTable(5);
    table.TotalWidth = doc.PageSize.Width - 90;

    // header rows
    table.AddCell(GetCell("Header " + Count, 1, 1));
    table.AddCell(GetCell("Header " + Count, 1, 1));
    table.AddCell(GetCell("Header " + Count, 1, 1));
    table.AddCell(GetCell("Header " + Count, 1, 1));
    table.AddCell(GetCell("Header " + Count, 1, 1));
    table.CompleteRow();

    for (int i = 0; i <= 8; i++)
    {
        // Inner middle row.
        table.AddCell(GetCell("Content" + Count));
        table.AddCell(GetCell("Content" + Count));
        table.AddCell(GetCell("Content" + Count));
        table.AddCell(GetCell("Content" + Count));
        table.AddCell(GetCell("Content" + Count));
        table.CompleteRow();

        table.WriteSelectedRows(0, -1, 50, doc.PageSize.Height - 140, pcb);
        page.Add(pcb);
    }

    //add second page
    PdfReader pdfReader2 = null;
    PdfImportedPage page2 = null;

    for (int i = 1; i <= 2; i++)
    {
        doc.NewPage();
        PdfPTable table2 = new PdfPTable(5);
        PdfContentByte pcb2 = writer.DirectContent;

        pdfReader2 = new PdfReader(templatePath + "Page2.pdf");
        page2 = writer.GetImportedPage(pdfReader2, 1);
        doc.Add(iTextSharp.text.Image.GetInstance(page2));

        table2.TotalWidth = doc.PageSize.Width - 90;

        // header rows
        var y = rowCount;
        table2.AddCell(GetCell("Header" + y));
        table2.AddCell(GetCell("Header" + y));
        table2.AddCell(GetCell("Header" + y));
        table2.AddCell(GetCell("Header" + y));
        table2.AddCell(GetCell("Header" + y));
        table2.CompleteRow();

        for (int x = 0; x <= 23; x++)
        {
            y = rowCount;
            if ((y) % 5 == 0)
            {
                table2.AddCell(GetCell("Content" + y));
                table2.AddCell(GetCell("Content" + y));
                table2.AddCell(GetCell("Content" + y));
                table2.AddCell(GetCell("Content" + y));
                table2.AddCell(GetCell("Content" + y));
                table2.CompleteRow();
                y = rowCount;

                var p = new Phrase("");
                PdfPCell cell = new PdfPCell(p);
                cell.Border = 0;
                cell.Colspan = 5;
                cell.Rowspan = 1;
                cell.PaddingBottom = 15;
                LineSeparator line = new LineSeparator(1f, 100f, BaseColor.BLACK, Element.ALIGN_LEFT, 1);
                p.Add(line);
                table2.AddCell(cell);
                table2.CompleteRow();
            }
            else
            {
                // Inner middle row.
                table2.AddCell(GetCell("Content" + y));
                table2.AddCell(GetCell("Content" + y));
                table2.AddCell(GetCell("Content" + y));
                table2.AddCell(GetCell("Content" + y));
                table2.AddCell(GetCell("Content" + y));
                table2.CompleteRow();
            }

            table2.WriteSelectedRows(0, -1, 50, doc.PageSize.Height - 140, pcb2);
            page2.Add(pcb2);
        }
    }

    doc.Close();
}