Image img = Image.getInstance("pngnow.png");
img.scalePercent(70);
Chunk ck = new Chunk(img, 0, -5);
PdfPTable table = new PdfPTable(3);
PdfPCell cell = new PdfPCell();
cell.addElement(new Chunk(img, 5, -5));
cell.setBackgroundColor(new Color(0xC0, 0xC0, 0xC0));
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
table.addCell("I see an image\non my right");
table.addCell(cell);
table.addCell("I see an image\non my left");