Java如何在iText中创建上标/下标？
下面的示例将介绍如何使用iText在pdf文档中创建上标和下标文本。我们可以使用名为setTextRise()的Chunk类方法。正值将创建上标文本，负值将创建下标文本。
package org.nhooo.example.itextpdf;
import com.itextpdf.text.*;
import com.itextpdf.text.pdf.PdfWriter;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
public class SuperSubscriptDemo {
public static void main(String[] args) {
Document doc = new Document();
try {
PdfWriter.getInstance(doc, new FileOutputStream("SuperSubscript.pdf"));
doc.open();
Font small = FontFactory.getFont(FontFactory.HELVETICA, 5, Font.ITALIC);
// 将一些块添加到doc对象中。
doc.add(new Chunk("The quick brown "));
Chunk superscript = new Chunk("fox ");
superscript.setTextRise(5f);
superscript.setFont(small);
doc.add(superscript);
doc.add(new Chunk("jumps over the lazy "));
Chunk subscript = new Chunk("dog");
subscript.setTextRise(-5f);
subscript.setFont(small);
doc.add(subscript);
} catch (DocumentException | FileNotFoundException e) {
e.printStackTrace();
} finally {
doc.close();
}
}
}Maven依赖
<!-- http://repo1.maven.org/maven2/com/itextpdf/itextpdf/5.5.10/itextpdf-5.5.10.jar -->
<dependency>
<groupId>com.itextpdf</groupId>
<artifactId>itextpdf</artifactId>
<version>5.5.10</version>
</dependency>