//Initialize HTML to PDF converter.
HtmlToPdfConverter htmlConverter = new HtmlToPdfConverter();
//BlinkConverterSettings blinkConverterSettings = new BlinkConverterSettings();
//Set Blink binaries path.
//blinkConverterSettings.BlinkPath = @"BlinkBinaries/";
//Assign Blink converter settings to HTML converter.
//blinkConverterSettings.Orientation = Syncfusion.Pdf.PdfPageOrientation.Portrait;
//htmlConverter.ConverterSettings = blinkConverterSettings;
//Convert URL to PDF document.
PdfDocument document = htmlConverter.Convert(textBox1.Text, String.Empty);
//Create file stream to save the PDF document.
FileStream fileStream = new FileStream("PDF.pdf", FileMode.OpenOrCreate, FileAccess.ReadWrite);
//Save and close the PDF document.
document.Save(fileStream);
document.Close(true);
fileStream.Close();
System.Diagnostics.Process.Start("PDF.pdf");