import java.io.FileOutputStream;
import com.lowagie.text.Document;
import com.lowagie.text.pdf.PdfArray;
import com.lowagie.text.pdf.PdfDictionary;
import com.lowagie.text.pdf.PdfLayer;
import com.lowagie.text.pdf.PdfLayerMembership;
import com.lowagie.text.pdf.PdfName;
import com.lowagie.text.pdf.PdfOCProperties;
import com.lowagie.text.pdf.PdfObject;
import com.lowagie.text.pdf.PdfString;
import com.lowagie.text.pdf.PdfWriter;
public class LayersGroupPDF {
public static void main(String[] args) {
Document document = new Document();
try {
PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("LayersGroupPDF.pdf"));
writer.setPdfVersion(PdfWriter.VERSION_1_5);
writer.setViewerPreferences(PdfWriter.PageModeUseOC);
document.open();
PdfLayer l1 = new PdfLayer("Layer 1", writer);
PdfLayer l2 = new PdfLayer("Layer 2", writer);
PdfLayer l3 = new PdfLayer("Layer 3", writer);
PdfLayerMembership m1 = new PdfLayerMembership(writer);
m1.addMember(l1);
m1.addMember(l2);
m1.addMember(l3);
PdfOCProperties p = writer.getOCProperties();
PdfArray order = new PdfArray();
order.add(l1.getRef());
PdfArray group = new PdfArray();
group.add(new PdfString("A group of two", PdfObject.TEXT_UNICODE));
group.add(l2.getRef());
group.add(l3.getRef());
order.add(group);
PdfDictionary d = new PdfDictionary();
d.put(PdfName.ORDER, order);
p.put(PdfName.D, d);
} catch (Exception e) {
System.err.println(e.getMessage());
}
document.close();
}
}
itext.zip( 1,748 k)