Using iText Library

1. Add Maven Dependency: First, include the iText library in your pom.xml file:

<dependency>
<groupId>com.itextpdf</groupId>
<artifactId>itextpdf</artifactId>
<version>5.5.13.2</version> <!-- or the latest version -->
</dependency>

2. Create a PDF Document: Use the following code to create a simple PDF document:

import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.pdf.PdfWriter;
import java.io.FileOutputStream;
import java.io.IOException;
public class PdfCreator {
public static void main(String[] args) {
Document document = new Document();
try {
PdfWriter.getInstance(document, new FileOutputStream("example.pdf"));
document.open();
document.add(new Paragraph("Hello, World! This is a PDF document created using Java."));
} catch (DocumentException | IOException e) {
e.printStackTrace();
} finally {
document.close();
}
}
}

Using Apache PDFBox

1. Add Maven Dependency: Include PDFBox in your pom.xml:

<dependency>
<groupId>org.apache.pdfbox</groupId>
<artifactId>pdfbox</artifactId>
<version>2.0.25</version> <!-- or the latest version -->
</dependency>

2. Create a PDF Document: Use the following code to create a PDF:

import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.PDPage;
import org.apache.pdfbox.pdmodel.PDPageContentStream;
import org.apache.pdfbox.pdmodel.font.PDType1Font;
import java.io.IOException;
public class PDFBoxExample {
public static void main(String[] args) {
try (PDDocument document = new PDDocument()) {
PDPage page = new PDPage();
document.addPage(page);
PDPageContentStream contentStream = new PDPageContentStream(document, page);
contentStream.beginText();
contentStream.setFont(PDType1Font.HELVETICA_BOLD, 12);
contentStream.newLineAtOffset(100, 700);
contentStream.showText("Hello, World! This is a PDF document created using PDFBox.");
contentStream.endText();
contentStream.close();
document.save("example.pdf");
} catch (IOException e) {
e.printStackTrace();
}
}
}

Conclusion