In this post, I will show you how to read the pdf document properties in asp.net.As we know that there is no- such in-built class in .net framework that read the pdf document.So,for this demo,I will used third-party library iTextSharp.
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="PdfPropertiesReader.aspx.cs" Inherits="PdfPropertiesReader" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title></title> </head> <body> <form id="form1" runat="server"> <div> <div id="pdfProperties" runat="server"> </div> </div> <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Read Pdf Properties" /> </form> </body> </html>
using System; using System.Collections; using System.Collections.Generic; using iTextSharp.text; using iTextSharp.text.pdf; using System.Text; public partial class PdfPropertiesReader : System.Web.UI.Page { private const string FileNmae = @"C:\\temp\\asp.pdf"; protected void Page_Load(object sender, EventArgs e) { } protected void Button1_Click(object sender, EventArgs e) { try { StringBuilder stringBuilder = new StringBuilder(); // create a reader (constructor overloaded for path to local file or URL) PdfReader reader = new PdfReader(FileNmae); // total number of pages int n = reader.NumberOfPages; // size of the first page Rectangle psize = reader.GetPageSize(1); float width = psize.Width; float height = psize.Height; Console.WriteLine("Size of page 1 of {0} => {1} × {2}", n, width, height); // file properties Hashtable infodict = reader.Info; foreach (DictionaryEntry kvp in infodict) { stringBuilder.Append(kvp.Key + "=>" + kvp.Value + "</br>"); } pdfProperties.InnerHtml = stringBuilder.ToString(); } catch (Exception exception) { Response.Write(exception.Message); } } }
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