Font Metrics : Font « PDF « Java Tutorial

1. Java Tutorial
2. PDF
3. Font

import java.io.FileOutputStream;

import com.lowagie.text.Document;
import com.lowagie.text.Font;
import com.lowagie.text.Paragraph;
import com.lowagie.text.pdf.BaseFont;
import com.lowagie.text.pdf.PdfWriter;

public class MainClass {
  public static void main(String[] args) throws Exception {
    Document document = new Document();
    PdfWriter.getInstance(document, new FileOutputStream("2.pdf"));

    document.open();

    Font font = new Font(Font.HELVETICA, 12);
    BaseFont bf = font.getCalculatedBaseFont(false);

    String numbers = "0123456789";
    String letters = "abcdefghijklmnopqrstuvwxyz";
    document.add(new Paragraph(numbers, font));
    System.out.println("width: " + bf.getWidth(numbers) + " (" + bf.getWidthPoint(numbers, 12)
        + "pt)");
    System.out.println("ascent: " + bf.getAscent(numbers) + "; descent: " + bf.getDescent(numbers)
        + "; height: " + (bf.getAscentPoint(numbers, 12) - bf.getDescentPoint(numbers, 12) + "pt"));
    document.add(new Paragraph(letters, font));
    System.out.println("width: " + bf.getWidth(letters) + " (" + bf.getWidthPoint(letters, 12)
        + "pt)");
    System.out.println("ascent: " + bf.getAscent(letters) + "; descent: " + bf.getDescent(letters)
        + "; height: " + (bf.getAscentPoint(letters, 12) - bf.getDescentPoint(letters, 12)) + "pt");

    document.close();
  }
}