Java tutorial
import java.io.FileOutputStream; import com.lowagie.text.Chunk; import com.lowagie.text.Document; import com.lowagie.text.Paragraph; import com.lowagie.text.pdf.PdfContentByte; import com.lowagie.text.pdf.PdfWriter; public class LayerShapeOnTextPDF { public static void main(String[] args) { Document document = new Document(); try { PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("LayerShapeOnTextPDF.pdf")); document.open(); Paragraph p = new Paragraph(); for (int i = 0; i < 100; i++) p.add(new Chunk("Text Text Text Text Text Text Text Text ")); document.add(p); PdfContentByte cb = writer.getDirectContent(); cb.setRGBColorFill(0xFF, 0xFF, 0xFF); cb.circle(250.0f, 500.0f, 50.0f); cb.fill(); } catch (Exception e) { System.err.println(e.getMessage()); } document.close(); } }