Introduction
In this article, I will explain how to open a PDF file in a web browser using ASP.NET.
Use the following procedure.
Step 1
Open Visual Studio 2012 and click "File" -> "New" -> "web site...". A window is opened. In this window, click "Empty Web Site Application" under Visual C#.
![application-name.jpg]()
Give the name of your application as "Open_PDF" and then click "Ok".
Step 2
After this session the project has been created, A new window is opened on the right side. This window is called the Solution Explorer. Solution Explorer contains the pdf file, css file and aspx files and looks like this:
![solution-explorer.jpg]()
Complete Program
CreateZip.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Open_PDF.aspx.cs" Inherits="Open_PDF" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<h3 style="color: #0000FF">Open PDF files using ASP.NET</h3>
<div>
<asp:Button ID="bttnpdf" runat="server" Text="Click for open PDF" Font-Bold="True" OnClick="bttnpdf_Click" />
</div>
</form>
</body>
</html>
Open.aspx.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Net;
public partial class Open_PDF : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void bttnpdf_Click(object sender, EventArgs e)
{
string FilePath = Server.MapPath("javascript1-sample.pdf");
WebClient User = new WebClient();
Byte[] FileBuffer = User.DownloadData(FilePath);
if (FileBuffer != null)
{
Response.ContentType = "application/pdf";
Response.AddHeader("content-length", FileBuffer.Length.ToString());
Response.BinaryWrite(FileBuffer);
}
}
}
Output 1
![first-image.jpg]()
Click on the button.
Output 2
![final-image.jpg]()
For more information, download the attached sample application.