Image in html page cannot be found by c# html parser

Question

I am using itextsharp dll to print web page in PDF . I have a <img src="Images/flower.jpg" /> in my html file. The button click event below will render PDF fine when I don't have the image. With the image, I got this error:

Could not find a part of the path 'C:\Program Files (x86)\Common Files\Microsoft Shared\DevServer\10.0\Images\flower.jpg'

Here is my code:

    protected void Button1_Click(object sender, EventArgs e)
    {
        Response.ContentType = "application/pdf";
        Response.AddHeader("content-disposition", "attachment;filename=TestPage.pdf");
        Response.Cache.SetCacheability(HttpCacheability.NoCache);
        StringWriter sw = new StringWriter();
        HtmlTextWriter hw = new HtmlTextWriter(sw);
        this.Page.RenderControl(hw);
        StringReader sr = new StringReader(sw.ToString());
        Document pdfDoc = new Document(PageSize.A4, 10f, 10f, 100f, 0f);
        HTMLWorker htmlparser = new HTMLWorker(pdfDoc);
        PdfWriter.GetInstance(pdfDoc, Response.OutputStream);
        pdfDoc.Open();
        htmlparser.Parse(sr);
        pdfDoc.Close();
        Response.Write(pdfDoc);
        Response.End();
    }

In your HTML you need to give an absolute path to the image since a relative path would mean relative to the current working directory which is the path which you see when the error pops up. — Jurgen Camilleri
– Jurgen Camilleri, Commented Oct 23, 2013 at 21:12
That works. Thanks. This would mean I have to update the path once it moves to production server. — bach dang
– bach dang, Commented Oct 23, 2013 at 21:18
Yes, see my answer for a potentially better alternative if you have access to the image url through code. Don't forget to upvote and accept :) — Jurgen Camilleri
– Jurgen Camilleri, Commented Oct 23, 2013 at 21:20

Jurgen Camilleri · Accepted Answer · 2013-10-23 21:18:32Z

2

The easiest solution should be to change:

<img src="Images/flower.jpg" />

to:

<img src="http://www.yourwebsite.com/Images/flower.jpg" />

Otherwise you can use Server.MapPath("Images/flower.jpg") to get the full URL by code. However that implies you having to know the relative path to the image (meaning access to the raw html) at compile-time, which makes your code less maintainable.

answered Oct 23, 2013 at 21:18

Jurgen Camilleri

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