Download pdf file from link and save in local file folder

visit here.

http://stackoverflow.com/questions/8590543/force-browser-to-download-pdf-document-instead-of-opening-it[^]

Pdf can be downloaded in two ways in asp.net they are:

*) Using Script.
*) Using third party pdf creation dll files (iTextSharp).

1) Lets us first see pdf download using scripting
Step 1: Write the following script in ur .aspx page.

<script type="text/javascript">
       function PrintGridData() {
           var prtGrid = document.getElementById('<%=GridView1.ClientID %>');
           prtGrid.border = 0;
           var prtwin = window.open('', 'PrintGridViewData', 'left=100,top=100,width=1000,height=1000,tollbar=0,scrollbars=1,status=0,resizable=1');
           prtwin.document.write(prtGrid.outerHTML);
           prtwin.document.close();
           prtwin.focus();
           prtwin.print();
           prtwin.close();
       }
   </script>

Step 2: Now add a simple button to call the above function.

<input type="button" id="btnPrint" value="Convert To PDF"  önclick="PrintGridData()" />

2) Now Lets download pdf using Third party dll

Step 1: Download the iTextSharp dll from the following website
[iTextSharp pdf dll Download]

Step 2: Extract the dll and add it to your project by following these simple steps
right click on references (Solution Explorer)
-> add reference
-> navigate to where the dll is extracted
-> Select the dll and click ok.

Step 3: Now add a button to your aspx page as follows:

<asp:button id="pdf" runat="server" text="Convert to PDF" onclick="pdf_Click" xmlns:asp="#unknown" />

Step 4: Now in c# code add the following namespaces

using System;
using System.IO;
using System.Web;
using System.Web.UI;
using iTextSharp.text;
using iTextSharp.text.pdf;
using MySql.Data.MySqlClient;
using System.Web.UI.WebControls;
using iTextSharp.text.html.simpleparser;

step 5: Now write the code for button click(pdf_Click) as follows

protected void pdf_Click(object sender, EventArgs e)
        {
            Response.ContentType = "application/octet-stream";
            Response.AddHeader("content-disposition", string.Format("attachment;filename={0}", "PDF.pdf"));
            Response.Cache.SetCacheability(HttpCacheability.NoCache);

            StringWriter writer = new StringWriter();
            HtmlTextWriter textwriter = new HtmlTextWriter(writer);
            this.Page.RenderControl(textwriter);

            StringReader reader = new StringReader(writer.ToString());
            Document pdfdoc = new Document(PageSize.A4, 20f, 20f, 20f, 20f);
            //pdfdoc.AddHeader("Headers","User Password Type");
            HTMLWorker worker = new HTMLWorker(pdfdoc);
            PdfWriter.GetInstance(pdfdoc, Response.OutputStream);
            pdfdoc.Open();
            worker.Parse(reader);
            pdfdoc.Close();

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

Happy coding.