ASP.NET MVC example of using ABCpdf to convert HTML to PDF

ABCpdfUtils.cs

public static byte[] PDFForHtml(string html)
{
    // Create ABCpdf Doc object
    var doc = new Doc();

    // Add html to Doc
    int theID = doc.AddImageHtml(html);

    // Loop through document to create multi-page PDF
    while (true)
    {
        if (!doc.Chainable(theID))
            break;
        doc.Page = doc.AddPage();
        theID = doc.AddImageToChain(theID);
    }

    // Flatten the PDF
    for (int i = 1; i <= doc.PageCount; i++)
    {
        doc.PageNumber = i;
        doc.Flatten();
    }

    // Get PDF as byte array. Couls also use .Save() to save to disk
    var pdfbytes = doc.GetData();

    doc.Clear();

    return pdfbytes;
}

MVCHelpers.cs

public static string RenderViewToString(Controller controller, string viewName, object model, string masterName)
{
    controller.ViewData.Model = model;

    using (StringWriter sw = new StringWriter())
    {
        ViewEngineResult viewResult = ViewEngines.Engines.FindView(controller.ControllerContext, viewName, masterName);
        ViewContext viewContext = new ViewContext(controller.ControllerContext, viewResult.View, controller.ViewData, controller.TempData, sw);
        viewResult.View.Render(viewContext, sw);

        return sw.GetStringBuilder().ToString();
    }
}

ReportsController.cs

public ActionResult Projections(ProjectionsReportViewModel model)
{
    // Return view if there is an error
    if (!ModelState.IsValid)
    {
        return View(model);
    }

    // If user has clicked the export button
    if (model.Export)
    {
        // Render view output to string
        var report = RenderViewToString(this, "Projections", model, "_Print");

        // Convert string to PDF using ABCpdf
        var pdfbytes = PDFForHtml(report);

        // Return file result
        return File(pdfbytes, System.Net.Mime.MediaTypeNames.Application.Pdf, "Report.pdf");
    }

    // Not exporting to PDF, show the view
    return View(model);
}

Thanks for this!

Although, my generated PDF doesn't seem to be referencing files like images and css

Debugging I was able to see that the string generated by RenderViewToString has this kind of links:
href="/Content/css/Layout.css"
Which seems fine for browsers, but I guess its not fine for "doc.AddImageHtml(html)"

Any help? anyone? @agrigg?

Well I guess I needed to read more about AddImageHtml(html)

The orange box at the bottom of this link has the answer:
http://www.websupergoo.com/helppdfnet/source/5-abcpdf/doc/1-methods/addimagehtml.htm

"External stylesheets and images are often referenced via relative URLs. Because the HTML has no location it is impossible to resolve these relative reference. So you need to provide your stylesheet and image links as absolute references"

It returns the pdf, only it is empty, despite pdfbytes is not empty! any suggestions?
tried with stream also

Solved :P
Why i need to clear the doc after i already got the bytes? how can that affect the pdfbytes variable?