float providedHeight = 85;
float providedWidth = 750;
System.Drawing.RectangleF rect = new System.Drawing.RectangleF(0, 0, providedWidth , providedHeight );
//Create page template
HtmlToPdfConverter htmlConverter = new HtmlToPdfConverter(HtmlRenderingEngine.WebKit);
WebKitConverterSettings settings = new WebKitConverterSettings();
//Set page height of header height
settings.WebKitPath = HttpContext.Current.Server.MapPath("~/bin/QtBinaries");
settings.WebKitViewPort = new System.Drawing.Size(750, 0);
settings.Orientation = PdfPageOrientation.Landscape;
settings.PdfPageSize = new System.Drawing.SizeF(providedWidth , providedHeight );
settings.SplitImages = false;
settings.SplitTextLines = false;
htmlConverter.ConverterSettings = settings;
string baseUrl = hostedsiteURL;
PdfDocument document = htmlConverter.Convert(sHTMLDATA, baseUrl);
document.Save(@"D:\\SavePDF.pdf");