/// <summary>
 /// Populates the output.
 /// </summary>
 /// <param name="output">The output.</param>
 /// <param name="xhtmlDocument">The XHTML html.</param>
 private void PopulateOutput(PrintContext printContext, Epub.Document ePubDocument, HtmlDocument xhtmlDocument)
 {            
     var ePubChapterFile = "cover";
     var result = ePubDocument.AddXhtmlData(this.RenderingItem["ePub Base Path"] + ePubChapterFile + ".html", xhtmlDocument.DocumentNode.OuterHtml, false);
     ePubDocument.AddMetaItem("cover", "cover.html");
     if (printContext.Images.Any())
     {
         ePubDocument.AddMetaItem("cover-image", printContext.Images.FirstOrDefault().Key);
     } 
 }
 /// <summary>
 /// Populates the output.
 /// </summary>
 /// <param name="output">The output.</param>
 /// <param name="xhtmlDocument">The XHTML html.</param>
 private void PopulateOutput(PrintContext printContext, Epub.Document ePubDocument, HtmlDocument xhtmlDocument, string chapterTitle, string ePubChapterFile)
 {
     var result = ePubDocument.AddXhtmlData(this.RenderingItem["ePub Base Path"] + ePubChapterFile + ".html", xhtmlDocument.DocumentNode.OuterHtml);
 }