ct.setSimpleColumn(llx, lly, urx, ury, 24, Element.ALIGN_LEFT);
ct.setSpaceCharRatio(PdfWriter.NO_SPACE_CHAR_RATIO);
ct.setLeading(0, 1);
ct.setRunDirection(PdfWriter.RUN_DIRECTION_RTL);
ct.setAlignment(Element.ALIGN_CENTER);
ct.addText(new Chunk(ar1, new Font(bf, 16)));
ct.addText(new Chunk(ar2, new Font(bf, 16, Font.NORMAL, Color.red)));
ct.go();
ct.setAlignment(Element.ALIGN_JUSTIFIED);
ct.addText(new Chunk(ar3, new Font(bf, 12)));
ct.go();