Chuyển đến nội dung chính

How to convert html to pdf using c#?

     In this section we are going to see how to convert the pure html and css code to pdf using itextsharp and itexsharp.xmlworker dll's.


Download itextsharp.xmlworker.dll
Downlaod itextsharp.dll

Note:
     You should use the same version of the itextsharp.dll and itextsharp.xmlworker.dl

If you not use the same version you will see like the following error.
 Server Error in '/' Application.

Compilation Error

Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately.

Compiler Error Message: CS1705: Assembly 'itextsharp.xmlworker, Version=5.5.8.0, Culture=neutral, PublicKeyToken=8354ae6d2174ddca' uses 'itextsharp, Version=5.5.8.0, Culture=neutral, PublicKeyToken=8354ae6d2174ddca' which has a higher version than referenced assembly 'itextsharp, Version=5.5.0.0, Culture=neutral, PublicKeyToken=8354ae6d2174ddca'

Source Error:


[No relevant source lines]

Source File:    Line: 0


itextsharp.xmlworker and itextsharp error higher version
Client Side code:

<asp:HiddenField runat="server" ID="selectedhtml" />

<asp:ImageButton ID="lnkPDF" ImageUrl="~/App_Themes/Blue/images/adobe.jpg" ToolTip="Export to PDF"
                        runat="server" OnClick="lnkPDF_Clicked"></asp:ImageButton>&nbsp;&nbsp;&nbsp;

<div id="testdiv">
<div id="tdiv1">
<img src="sample.jpg" />
<table>
<tr>
<th>Name</th>
<th>Age</th>
</tr>
<tr>
<td>Merbin</td>
<td>29</td>
</tr>
<tr>
<td>Franklin</td>
<td>30</td>
</tr>
<tr>
<td>Justus</td>
<td>45</td>
</tr>
</table>
</div>
</div>


 <script>

     var btnobj = document.getElementById("<%=lnkPDF.ClientID%>");
     btnobj.addEventListener("click", myfun);

     function myfun() {

             document.getElementById('<%=selectedhtml.ClientID%>').value = document.getElementById('testdiv').innerHTML.replace(/(<img[^>]+)/g, "$1 /");

         }

</script>  


HTML code are converted into xhtml and after only it will process so we have some limitation eg) you should need to close the image tag and etc.
If you are get the innerHTML content the image close tag won't get you so you can replace the image close tag by using the following line.

document.getElementById('<%=selectedhtml.ClientID%>').value = document.getElementById('testdiv').innerHTML.replace(/(]+)/g, "$1 /");


Server Side Code:
protected void lnkPDF_Clicked(object sender, EventArgs e)
{

Document Doc;
Doc = new Document(PageSize.A4, 10f, 10f, 50f, 20f);

string filename = "PaySlip";
string outXml = selectedhtml.Value;
outXml = "<style>#tdiv1{background:red;color:white;}</style>" + outXml;
outXml = outXml.Replace("px", "");
outXml = outXml.Replace("<br>", "<br/>");

MemoryStream memStream = new MemoryStream();
TextReader xmlString = new StringReader(outXml);
using (Document document = new Document())
{
PdfWriter writer = PdfWriter.GetInstance(document, memStream);
document.Open();
byte[] byteArray = System.Text.Encoding.UTF8.GetBytes(outXml);
MemoryStream ms = new MemoryStream(byteArray);
XMLWorkerHelper.GetInstance().ParseXHtml(writer, document, ms, System.Text.Encoding.UTF8);
document.Close();
}

Response.ContentType = "application/pdf";
Response.AddHeader("content-disposition", "attachment;filename=" + filename + ".pdf");
Response.Cache.SetCacheability(HttpCacheability.NoCache);
Response.BinaryWrite(memStream.ToArray());
Response.End();
Response.Flush();
}



No need to put the px in styles, so you can replace the px to "" value by using the following line.
outXml = outXml.Replace("px", "");

innerHTML won't close the <br> tag so you should need to replace the <br> tag to <br/>.
outXml = outXml.Replace("<br>", "<br/>");



View Generated PDF file




Tags:
convert pdf to html in allinworld99, css not support while generating pdf from html code in allinworld99, background color not supported in htmlworker in allinworld99, how to convert htmlwoker to xmlworker in allinworld99,

Nhận xét

Popular Posts

AutoDWG PDF to DWG Converter Pro 2019 v3.9.1 Crack + Patch + Full Version

AutoDWG PDF to DWG Converter Pro 2019 v3.9.1 Crack + Patch + Full Version AutoDWG PDF to DWG Converter Pro 2019 v3.9.1 Crack + Patch + Full Version, as its name suggests, is a very simple and compact software for converting PDF documents into popular DWG and DXF formats in the CAD world. It also allows you to convert bitmap images into a scalable vector format. This software supports the latest version of AutoCAD 2017 and its output in AutoCAD will open without any incompatibility. This program is provided by AutoDWG, a creative company founded in 2002 and started to specialize in delivering CAD products. The company has been working with a variety of technologies to provide users with a variety of formats such as PDF, DWG , DXF, DWF, SWF, GIF, write, encrypt and share, as well as the ability to work with all of this format and convert between them for work in the CAD world. Due to customer feedback and their requests, the company is constantly working to improve the quality of its pro...

CCleaner 5.29 Pro full registration key for All Version

Download from Official Site: http://www.piriform.com/ccleaner/download/professional  Disconnect Internet Before Registration Don't Update Automatically. Download 5.29 Pro Full Version Previous Version Download here More Full Version Software: InternetDownload Manager (IDM) 6.25.20 iCare Data Recovery v5.1 Full with Registration Xilisoft Video Converter Ultimate 7.7.3.20131014 FuLL AdvancedSystemCare 8.1 Pro full Download Tuneup Utility 2014 Product key Driver Booster License Code Get Camtasia Studio full version free and save $300!!! CCleaner Professional 5.18 full with Registration Key Mini Tool Power Data recovery and Partition Wizard full with registration

Adobe Photoshop 7.0 Free Download Full Version With Key

Some Screenshots of Adobe Photoshop 7.0 Free Download Adobe Photoshop 7.0 With Keys Full Version! FileSize: 154 MB Download