Generate and download PDF from TextBox values using iTextSharp in ASP.Net

Hi indradeo,

Check this example. Now please take its reference and correct your code.

HTML

<table>
    <tr>
        <td>Name</td>
        <td>
            <asp:TextBox runat="server" ID="txtName" /></td>
    </tr>
    <tr>
        <td>Age</td>
        <td>
            <asp:TextBox runat="server" ID="txtAge" /></td>
    </tr>
</table>
<asp:Button Text="Preview" runat="server" OnClick="OnPreview" />
<asp:Button Text="Download" runat="server" OnClick="OnDownload" />
<hr />
<asp:Literal ID="ltEmbed" runat="server" />

Namespaces

C#

using System.IO;
using iTextSharp.text;
using iTextSharp.text.pdf;
using iTextSharp.tool.xml;

VB.Net

Imports System.IO
Imports iTextSharp.text
Imports iTextSharp.text.pdf
Imports iTextSharp.tool.xml

Code

C#

protected void OnPreview(object sender, EventArgs e)
{
    GeneratePDF();
    string embed = "<object data=\"{0}\" type=\"application/pdf\" width=\"300px\" height=\"200px\">";
    embed += "If you are unable to view file, you can download from <a href = \"{0}\">here</a>";
    embed += " or download <a target = \"_blank\" href = \"http://get.adobe.com/reader/\">Adobe PDF Reader</a> to view the file.";
    embed += "</object>";
    ltEmbed.Text = string.Format(embed, ResolveUrl("~/Report.pdf"));
}

protected void OnDownload(object sender, EventArgs e)
{
    GeneratePDF();
    byte[] bytes = File.ReadAllBytes(Server.MapPath("~/Report.pdf"));
    Response.Clear();
    Response.Buffer = true;
    Response.Charset = "";
    Response.Cache.SetCacheability(HttpCacheability.NoCache);
    Response.ContentType = "application/pdf";
    Response.AppendHeader("Content-Disposition", "attachment; filename=Report.pdf");
    Response.BinaryWrite(bytes);
    Response.Flush();
    Response.End();
}

private void GeneratePDF()
{
    string html = "<table cellpadding='5' cellspacing='0' style='border: 1px solid #ccc;font-size: 15pt'>";
    html += "<tr><td>Name :</td><td style='width:120px;border: 1px solid #ccc'>" + txtName.Text.Trim() + "</td></tr>";
    html += "<tr><td>Age  :</td><td style='width:120px;border: 1px solid #ccc'>" + txtAge.Text.Trim() + "</td></tr>";
    html += "</table>";
    using (FileStream stream = new FileStream(Server.MapPath("~/Report.pdf"), FileMode.OpenOrCreate))
    {
        Document pdfDoc = new Document(PageSize.A4, 10f, 10f, 10f, 0f);
        PdfWriter writer = PdfWriter.GetInstance(pdfDoc, stream);
        pdfDoc.Open();
        StringReader sr = new StringReader(html);
        XMLWorkerHelper.GetInstance().ParseXHtml(writer, pdfDoc, sr);
        pdfDoc.Close();
        stream.Close();
    }
}

VB.Net

Protected Sub OnPreview(ByVal sender As Object, ByVal e As EventArgs)
    GeneratePDF()
    Dim embed As String = "<object data=""{0}"" type=""application/pdf"" width=""300px"" height=""200px"">"
    embed += "If you are unable to view file, you can download from <a href = ""{0}"">here</a>"
    embed += " or download <a target = ""_blank"" href = ""http://get.adobe.com/reader/"">Adobe PDF Reader</a> to view the file."
    embed += "</object>"
    ltEmbed.Text = String.Format(embed, ResolveUrl("~/Report.pdf"))
End Sub

Protected Sub OnDownload(ByVal sender As Object, ByVal e As EventArgs)
    GeneratePDF()
    Dim bytes As Byte() = File.ReadAllBytes(Server.MapPath("~/Report.pdf"))
    Response.Clear()
    Response.Buffer = True
    Response.Charset = ""
    Response.Cache.SetCacheability(HttpCacheability.NoCache)
    Response.ContentType = "application/pdf"
    Response.AppendHeader("Content-Disposition", "attachment; filename=Report.pdf")
    Response.BinaryWrite(bytes)
    Response.Flush()
    Response.[End]()
End Sub

Private Sub GeneratePDF()
    Dim html As String = "<table cellpadding='5' cellspacing='0' style='border: 1px solid #ccc;font-size: 15pt'>"
    html += "<tr><td>Name :</td><td style='width:120px;border: 1px solid #ccc'>" & txtName.Text.Trim() & "</td></tr>"
    html += "<tr><td>Age  :</td><td style='width:120px;border: 1px solid #ccc'>" & txtAge.Text.Trim() & "</td></tr>"
    html += "</table>"

    Using stream As FileStream = New FileStream(Server.MapPath("~/Report.pdf"), FileMode.OpenOrCreate)
        Dim pdfDoc As Document = New Document(PageSize.A4, 10.0F, 10.0F, 10.0F, 0F)
        Dim writer As PdfWriter = PdfWriter.GetInstance(pdfDoc, stream)
        pdfDoc.Open()
        Dim sr As StringReader = New StringReader(html)
        XMLWorkerHelper.GetInstance().ParseXHtml(writer, pdfDoc, sr)
        pdfDoc.Close()
        stream.Close()
    End Using
End Sub

Screenshot