sap.SignatureRenderingMode = PdfSignatureAppearance.RenderingMode.DESCRIPTION;
			sap.SetVisibleSignature(new Rectangle(30, 830, 170, 700), numberOfPages, "Signature");

			PdfTemplate layer2 = sap.GetLayer(2);

			String text =
				"1 2 3 " +
				"а б в " +
				"a d c";

			Font font = new Font();
			float size = font.Size;
			float MARGIN = 2;

			Rectangle dataRect = new Rectangle(MARGIN, MARGIN, sap.Rect.Width - MARGIN, sap.Rect.Height - MARGIN);

			if (size <= 0)
			{
				Rectangle sr = new Rectangle(dataRect.Width, dataRect.Height);
				size = ColumnText.FitText(font, text, sr, 12, sap.RunDirection);
			}

			ColumnText ct = new ColumnText(layer2)
			{
				RunDirection = sap.RunDirection
			};

			ct.SetSimpleColumn(new Phrase(text, font), dataRect.Left, dataRect.Bottom, dataRect.Right, dataRect.Top, size, Element.ALIGN_LEFT);
			ct.Go();