how to add header and footer for pdf using c#.net

hii...

i am very tried to create header and footer for pdf using c#...here am using itextsharp for converting gridview(details) to pdf file...plz anyone help me..urgent

private void button1_Click(object sender, EventArgs e)

{

PdfPTable pdfTable = new PdfPTable(dataGridView1.ColumnCount);

pdfTable.DefaultCell.Padding = 3;

pdfTable.WidthPercentage = 30;

pdfTable.HorizontalAlignment = Element.ALIGN_LEFT;

pdfTable.DefaultCell.BorderWidth = 1;

foreach (DataGridViewColumn column in dataGridView1.Columns)

{

//try

//{

// PdfPCell cell = new PdfPCell(new Phrase("Header spanning 3 columns"));

// cell.BackgroundColor = new BaseColor(System.Drawing.Color.Red);

// cell.BackgroundColor = BaseColor.RED;

//}

//catch (NullReferenceException ex)

//{

// MessageBox.Show(ex.Message);

//}

}

foreach (DataGridViewRow row in dataGridView1.Rows)

{

foreach (DataGridViewCell cell in row.Cells)

{

try

{

if (cell != null)

{

pdfTable.AddCell(cell.Value.ToString());

}

catch (NullReferenceException ex)

{

// MessageBox.Show(ex.Message);

}

//Exporting to PDF

string folderPath = "Resources/pdf/";

if (!Directory.Exists(folderPath))

{

try

{

Directory.CreateDirectory(folderPath);

}

catch (NullReferenceException ex)

{

MessageBox.Show(ex.Message);

}

using (FileStream stream = new FileStream(folderPath + "DataGridViewExport.pdf", FileMode.Create))

{

try

{

Document pdfDoc = new Document(PageSize.A2, 10f, 10f, 10f, 0f);

PdfWriter.GetInstance(pdfDoc, stream);

pdfDoc.Open();

pdfDoc.Add(pdfTable);

pdfDoc.Close();

stream.Close();

}

catch (Exception ex)

{

MessageBox.Show(ex.Message);

}