Display pdf file in ASP.Net

If you have the PDF file on your local machine or stored on a server you can add the path to the button's click eventl. You can do something as simple as the following assuming you have acrobat installed.

using System.Net;

string pdfPath = Server.MapPath("~/SomePDFFile.pdf");

WebClient client = new WebClient();

Byte[] buffer = client.DownloadData(pdfPath);

Response.ContentType = "application/pdf";

Response.AddHeader("content-length", buffer.Length.ToString());

Response.BinaryWrite(buffer);

If you don't want to install adobe reader, you can use Spire.PDF don't need adobe reader at all

//load a pdf document.

PdfDocument doc = new PdfDocument(" filepath");