iText 5 PDF - How to change the spacing between words and characters?

To create PDF file we need iText 5 jar. Download iText Jars from iText Website or Maven Repository

Maven Dependency

<!-- https://mvnrepository.com/artifact/com.itextpdf/itextpdf -->
<dependency>
 <groupid>com.itextpdf</groupid>
 <artifactid>itextpdf</artifactid>
 <version>5.5.11</version>
</dependency>

SpaceCharRatioExample.java

package com.javatutorialcorner.itextpdf;
 
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Element;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.pdf.PdfWriter;
  
 
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
 
public class SpaceCharRatioExample {
  
 public static final String DEST = "C:/JTC/SpaceCharRatioExample.pdf";
  
    public static void main(String[] args) throws IOException, DocumentException {
        File file = new File(DEST);
        file.getParentFile().mkdirs();
        new SpaceCharRatioExample().createPdf(DEST);
    }
  
    public void createPdf(String dest) throws IOException, DocumentException {
        // step 1
        Document document = new Document();
        // step 2
        PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(dest));
        // step 3
        document.open();
        // step 4
        writer.setSpaceCharRatio(PdfWriter.NO_SPACE_CHAR_RATIO);
        Paragraph paragraph = new Paragraph();
        paragraph.setAlignment(Element.ALIGN_JUSTIFIED);
        paragraph.setIndentationLeft(20);
        paragraph.setIndentationRight(20);
        paragraph.add("HelloWorld HelloWorld HelloWorld HelloWorld HelloWorld"+ 
            "HelloWorld HelloWorldHelloWorldHelloWorldHelloWorld"+
            "HelloWorld HelloWorld HelloWorld HelloWorldHelloWorldHelloWorld");
        document.add(paragraph);
        // step 5
        document.close();
    }
}