Read contents of PDF file and display in a html format

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>     xmlns="http://www.w3.org/1999/xhtml">  id="Head1" runat="server">             id="form1" runat="server">     
          ID="FileUpload1" runat="server" />          />          ID="btnRead" Text="Convert" runat="Server" OnClick="btnRead_Click" />          />          ID="txtContent" runat="Server" TextMode="MultiLine" Height="376px" Width="411px">            

using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.IO;  public partial class _Default : System.Web.UI.Page  {     protected void Page_Load(object sender, EventArgs e)     {      }     protected void btnRead_Click(object sender, EventArgs e)     {         string appPath = Request.ApplicationPath;         System.Diagnostics.Process p = new System.Diagnostics.Process();         p.StartInfo.Arguments = " -raw -htmlmeta" + " " + FileUpload1.PostedFile.FileName + " " + "D:\\output.htm"; ;         p.StartInfo.FileName = Page.MapPath("pdftotext.exe");          p.StartInfo.UseShellExecute = false;         p.StartInfo.CreateNoWindow = false;         p.StartInfo.RedirectStandardOutput = false;         p.Start();         p.WaitForExit();         System.Threading.Thread.Sleep(3000);         txtContent.Text = ReadFile("D:\\output.htm");       }      public string ReadFile(string s)     {         StreamReader sr = new StreamReader(s);         string strReturn = sr.ReadToEnd();         return strReturn;      } }

// Open the source PDF document Document pdfDocument = new Document("input.pdf");  // Save the file to HTML doc.Save("Output.html", SaveFormat.Html);