Default.aspx.cs

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

using iTextSharp.text;
using iTextSharp.text.pdf;
using iTextSharp.text.html.simpleparser;


namespace ITextSharpPDFGeneration
{
    public partial class Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            Response.ClearContent();
            Response.ContentType = "application/pdf";
            Response.AddHeader("content-disposition", "attachment; filename=PDFDoc.pdf");
            Response.Cache.SetCacheability(HttpCacheability.NoCache);

            StringWriter stringWriter = new StringWriter();
            HtmlTextWriter htmlTextWriter = new HtmlTextWriter(stringWriter);

            GridView1.AllowPaging = false;
            GridView1.AllowCustomPaging = false;
            GridView1.AllowSorting = false;
            GridView1.DataBind();

            GridView1.RenderControl(htmlTextWriter);

            StringReader stringReader = new StringReader(stringWriter.ToString());
            Document pdfDoc = new Document(PageSize.A4, 10f, 10f, 10f, 0f);
            HTMLWorker htmlWorker = new HTMLWorker(pdfDoc);
            PdfWriter.GetInstance(pdfDoc, Response.OutputStream);

            pdfDoc.Open();
            htmlWorker.Parse(stringReader);
            pdfDoc.Close();

            Response.Write(pdfDoc);
            Response.End();
        }

        public override void VerifyRenderingInServerForm(Control control)
        {
            /* Verifies that the control is rendered */
        }
    }
}