pdf with floating box and ocr scan line

pdfcoupon.cs

            // Load HTML file
            var pdfDocument = new Document(stream, options);
            //pdfDocument.FitWindow = true;

            Font myFont = FontRepository.OpenFont(HttpContext.Current.Server.MapPath("~/fonts/ocraextended.ttf"));
            //Font myFont = FontRepository.OpenFont(".\\fonts\\ocraextended.ttf");
            myFont.IsEmbedded = true;

            //create text stamp
            TextStamp textStamp = new TextStamp("0123456789000100000123456789");
            //set whether stamp is background
            textStamp.Background = true;
            textStamp.HorizontalAlignment = HorizontalAlignment.Right;
            textStamp.VerticalAlignment = VerticalAlignment.Bottom;
            textStamp.BottomMargin = 27; // 3/8 inch
            textStamp.RightMargin = 27;
            
            //set text properties
            textStamp.TextState.Font = myFont;
            textStamp.TextState.FontSize = 12.0F;
            textStamp.TextState.FontStyle = FontStyles.Regular;
            //add stamp to particular page
            pdfDocument.Pages[1].AddStamp(textStamp);
            
            var box = new FloatingBox((float)pdfDocument.PageInfo.Width, 100);
            box.VerticalAlignment = VerticalAlignment.Bottom;
            box.HorizontalAlignment = HorizontalAlignment.Left;
            box.Margin = new MarginInfo(0, 0, 0, 0);
            
            box.Border = new BorderInfo(BorderSide.Top, 8, Color.Black);

            var text = new TextFragment("GREAT COUPON");
            text.TextState.FontSize = 24F;
            text.TextState.FontStyle = FontStyles.Bold;
            text.Margin = new MarginInfo(10, 10, 10, 10);

            box.Paragraphs.Add(text);
            box.Left = 0 - pdfDocument.PageInfo.Margin.Left;
            box.Top = pdfDocument.PageInfo.Height - 216; //3 inches

            pdfDocument.Pages[1].Paragraphs.Add(box);

            var output = new MemoryStream();
            pdfDocument.Save(output);