问itextsharp如何添加整行换行符

EN

var pageSize = PageSize.A4;

        if (_pdfSettings.LetterPageSizeEnabled)
        {
            pageSize = PageSize.LETTER;
        }


        var doc = new Document(pageSize);
        PdfWriter.GetInstance(doc, stream);
        doc.Open();

        //fonts

        var titleFont = GetFont();
        titleFont.SetStyle(Font.BOLD);
        titleFont.Color = BaseColor.BLACK;
        titleFont.Size = 16;

        var largeFont = GetFont();
        largeFont.SetStyle(Font.BOLD);
        largeFont.Color = BaseColor.BLACK;
        largeFont.Size = 18;

        int ordCount = orders.Count;
        int ordNum = 0;

        foreach (var order in orders)
        {

            var addressTable = new PdfPTable(3);
            addressTable.WidthPercentage = 100f;
            addressTable.SetWidths(new[] { 25, 37, 37 });


            // sender address

            cell = new PdfPCell();
            //cell.Border = Rectangle.NO_BORDER;
            cell.AddElement(new Paragraph("Người Gửi", titleFont));
            cell.AddElement(new Paragraph(_localizationService.GetResource("admin.orders.pdfinvoice.sender", lang.Id), smallFont));
            cell.AddElement(new Paragraph(_localizationService.GetResource("admin.orders.pdfinvoice.senderaddress", lang.Id), smallFont));
            cell.AddElement(new Paragraph(_localizationService.GetResource("PDFInvoice.Hotline", lang.Id), smallFont));
            cell.AddElement(new Paragraph("TAKARA.VN", largeFont));

            addressTable.AddCell(cell);

            ......
           Chunk linebreak = new Chunk(new DottedLineSeparator());
                doc.Add(linebreak);   

                doc.Add(new Paragraph(""));
           ....
}