Format an asp.net c # PDF with iTextSharp

Good afternoon.

I'm doing an export to pdf for that I'm using iTextSharp so what I would like is the header be centered by the one who already does it:

• NumeroCuota

• Expiration Date

• quota

• AmortizacionCapital

• Interesting
• Balance

and the rest should be of the right position

this is my current code:

using (StringWriter sw = new StringWriter())
                {
                    using (HtmlTextWriter hw = new HtmlTextWriter(sw))
                    {
                        //To Export all pages

                        GridView1.AllowPaging = false;
                        this.BindGrid();

                        GridView1.RenderControl(hw);

                        StringReader sr = new StringReader(sw.ToString());
                        Document pdfDoc = new Document(PageSize.A2, 10f, 10f, 10f, 10f);

                        HTMLWorker htmlparser = new HTMLWorker(pdfDoc);

                        PdfWriter.GetInstance(pdfDoc, Response.OutputStream);
                        pdfDoc.Open();



                        Font LineBreak = FontFactory.GetFont("Arial", size: 14);

                       // pdfDoc.Add(img);
                       // img.ScaleAbsolute(159f, 159f);

                        pdfDoc.Add(new Paragraph("SIMULADOR DE CREDITOS"));
                        pdfDoc.Add(new Paragraph("\n\n", LineBreak));
                        pdfDoc.Add(new Paragraph("CRONOGRAMA DE CREDITOS"));

                        pdfDoc.Add(new Paragraph("\n\n", LineBreak));

                        htmlparser.Parse(sr);

                        pdfDoc.Close();

                        Response.ContentType = "application/pdf";
                        Response.AddHeader("content-disposition", "attachment;filename=Simulador_Credito.pdf");
                        Response.Cache.SetCacheability(HttpCacheability.NoCache);
                        Response.Write(pdfDoc);
                        Response.End();
                    }
}
}

Well the header will order it to the center but everything is centered but I would like the body to be right.

do it with this code

 e.Row.Cells[0].HorizontalAlign = HorizontalAlign.Center;
            e.Row.Cells[1].HorizontalAlign = HorizontalAlign.Center;
            e.Row.Cells[2].HorizontalAlign = HorizontalAlign.Center;
            e.Row.Cells[3].HorizontalAlign = HorizontalAlign.Center;
            e.Row.Cells[4].HorizontalAlign = HorizontalAlign.Center;
            e.Row.Cells[5].HorizontalAlign = HorizontalAlign.Center;

This is generating me to the present