The following example you'll see how to create a superscript and subscript text in the pdf document using iText. We can use the Chunk's class method called setTextRise(). A positive value will create a superscript text while a negative value will create a subscript text.
package org.kodejava.example.itextpdf;
import com.itextpdf.text.Chunk;
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Font;
import com.itextpdf.text.FontFactory;
import com.itextpdf.text.pdf.PdfWriter;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
public class SuperSubscriptDemo {
public static void main(String[] args) {
Document document = new Document();
try {
PdfWriter.getInstance(document,
new FileOutputStream("SuperSubscript.pdf"));
document.open();
Font small = FontFactory.getFont(FontFactory.HELVETICA,
5, Font.ITALIC);
//
// Add some chunks into the document object.
//
document.add(new Chunk("The quick brown "));
Chunk superscript = new Chunk("fox ");
superscript.setTextRise(5f);
superscript.setFont(small);
document.add(superscript);
document.add(new Chunk("jumps over the lazy "));
Chunk subscript = new Chunk("dog");
subscript.setTextRise(-5f);
subscript.setFont(small);
document.add(subscript);
} catch (DocumentException | FileNotFoundException e) {
e.printStackTrace();
} finally {
document.close();
}
}
}