Sitefinity RadDocument PDF Export Sample

RadDocumentPdfDownload.cs

protected void OnDownloadPDF_Click(object sender, EventArgs e) {
	string output = "";
	byte[] buffer = new byte[0];

	string filename = "file"
	string html = Util.GetHtmlToExport(); //However you want...this is a fake stub

	var thread = new Thread(() =>
	{
		Telerik.Windows.Documents.FormatProviders.Pdf.PdfFormatProvider provider = new Telerik.Windows.Documents.FormatProviders.Pdf.PdfFormatProvider();
		HtmlFormatProvider htmlProvider = new HtmlFormatProvider();

		//Settings
		HtmlImportSettings importSettings = new HtmlImportSettings();
		importSettings.LoadImageFromUrl += importSettings_LoadImageFromUrl;
		importSettings.UseHtmlHeadingStyles = true;

		htmlProvider.ImportSettings = importSettings;

		RadDocument document = htmlProvider.Import(html);
		document.LayoutMode = DocumentLayoutMode.Paged;
		document.EnsureDocumentMeasuredAndArranged();

		buffer = provider.Export(document);
	});

	thread.SetApartmentState(ApartmentState.STA);
	thread.Start();
	thread.Join();

	Response.Clear();
	MemoryStream ms = new MemoryStream(buffer);
	Response.ContentType = "application/pdf";
	Response.AddHeader("content-disposition", "attachment;filename={0}.pdf".Arrange(filename));
	Response.Buffer = true;
	ms.WriteTo(Response.OutputStream);
	Response.End();

}

public static void importSettings_LoadImageFromUrl(object sender, LoadImageEventArgs e)
{
	try
	{
		WebClient webClient = new WebClient();
		var uri = new Uri(e.Url);

		var bytes = webClient.DownloadData(uri);

		var extension = webClient.ResponseHeaders["Content-Type"].ToString();
		extension = extension.Replace("image/","");
		if(String.IsNullOrEmpty(extension)){
			extension = "png";
		}

		Stream stream = new MemoryStream(bytes);
		e.Handled = true;
		e.ImageElement.Init(stream, extension.ToLower());
	}catch(Exception ex){
		
	}
}