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Sunday, 19 April 2020

Convert Html To PDF In Asp.Net C# Ising iTextSharp

4/19/2020 - By Pranav Singh 0


This article will show you how you can export html content to pdf in your asp.net application using iTextSharp.

So first we will create a new asp.net application an then install the nuget package for iTextSharp. Please check the below link and screen show.

https://www.nuget.org/packages/iTextSharp/


Now open package installer and install the nuget package.


After installing add a button control in your page and generate the click event.

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="WebApplication1.WebForm1" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>HTML to PDF in Asp.Net</title>
</head>
<body>
    <form id="form1" runat="server">
        <h3>Export Html to PDF</h3><br />
        <div>
            <asp:Button ID="Button1" runat="server" Text="Export HTML to PDF" OnClick="Button1_Click" />
        </div>

    </form>
</body>
</html>

Now in your code behind add the below code to export the html content from code behind to pdf.
using iTextSharp.text;
using iTextSharp.text.html.simpleparser;
using iTextSharp.text.pdf;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace WebApplication1
{
    public partial class WebForm1 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }
        protected void Button1_Click(object sender, EventArgs e)
        {
            string htmlcontent = HTMLString();
            Document pdfDoc = new Document(PageSize.A4, 10f, 10f, 10f, 0f);
            PdfWriter.GetInstance(pdfDoc, Response.OutputStream);
            pdfDoc.Open();
            List htmlarraylist = HTMLWorker.ParseToList(new StringReader(htmlcontent), null);

            for (int k = 0; k < htmlarraylist.Count; k++)

            {
                pdfDoc.Add((IElement)htmlarraylist[k]);
            }
            pdfDoc.Close();
            Response.ContentType = "application/pdf";
            Response.AddHeader("content-disposition", "attachment;filename=sample.pdf");
            Response.Cache.SetCacheability(HttpCacheability.NoCache);
            Response.Write(pdfDoc);
        }

   public string HTMLString()
        {
            StringBuilder htmltext = new StringBuilder();
            htmltext.Append("<div><h1>Welcome To aspdotnetpools</h1></div>");
            htmltext.Append("<table width='100%' border='1'>");
            htmltext.Append("<tr>");
            htmltext.Append("<td>Data 1</td>");
            htmltext.Append("<td>Data 1</td>");
            htmltext.Append("<td>Data 1</td>");
            htmltext.Append("<td>Data 1</td>");
            htmltext.Append("</tr>");
            htmltext.Append("<tr>");
            htmltext.Append("<td>Data 1</td>");
            htmltext.Append("<td>Data 1</td>");
            htmltext.Append("<td>Data 1</td>");
            htmltext.Append("<td>Data 1</td>");
            htmltext.Append("</tr>");
            htmltext.Append("<tr>");
            htmltext.Append("<td>Data 1</td>");
            htmltext.Append("<td>Data 1</td>");
            htmltext.Append("<td>Data 1</td>");
            htmltext.Append("<td>Data 1</td>");
            htmltext.Append("</tr>");
            htmltext.Append("<tr>");
            htmltext.Append("<td>Data 1</td>");
            htmltext.Append("<td>Data 1</td>");
            htmltext.Append("<td>Data 1</td>");
            htmltext.Append("<td>Data 1</td>");
            htmltext.Append("</tr>");
            htmltext.Append("<tr>");
            htmltext.Append("<td>Data 1</td>");
            htmltext.Append("<td>Data 1</td>");
            htmltext.Append("<td>Data 1</td>");
            htmltext.Append("<td>Data 1</td>");
            htmltext.Append("</tr>");
            htmltext.Append("<tr>");
            htmltext.Append("<td>Data 1</td>");
            htmltext.Append("<td>Data 1</td>");
            htmltext.Append("<td>Data 1</td>");
            htmltext.Append("<td>Data 1</td>");
            htmltext.Append("</tr>");
            htmltext.Append("<tr>");
            htmltext.Append("<td>Data 1</td>");
            htmltext.Append("<td>Data 1</td>");
            htmltext.Append("<td>Data 1</td>");
            htmltext.Append("<td>Data 1</td>");
            htmltext.Append("</tr>");
            htmltext.Append("</table>");
            htmltext.Append("<br/><br/>");
            htmltext.Append("Thanks you for downloading");
            htmltext.Append("aspdotnet-pools.com");

            return htmltext.ToString();
        }    
    }
}

In above code first I have prepared an html string and then exported it to pdf. Now run the application and check the output.


Here is the output.


DOWNLOAD

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We are the group of people who are expertise in different Microsoft technology like Asp.Net,MVC,C#.Net,VB.Net,Windows Application,WPF,jQuery,Javascript,HTML. This blog is designed to share the knowledge.

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