This example shows how to create a table in a PDF document. Using the iText PDF library we can use the PdfPTable and the PdfPCell classes to create table and cells in our PDF document. In the following code snippet we use array of strings to define the table’s data.

package org.kodejava.example.itextpdf;

import com.itextpdf.text.*;
import com.itextpdf.text.pdf.PdfPCell;
import com.itextpdf.text.pdf.PdfPTable;
import com.itextpdf.text.pdf.PdfWriter;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;

public class PDFTableDemo {
    public static void main(String[] args) {
        String[] headers = new String[]{
                "No", "Username", "First Name", "Last Name"
        };
        String[][] data = new String[][]{
                {"1", "jdow", "John", "Dow"},
                {"2", "stiger", "Scott", "Tiger"},
                {"3", "fbar", "Foo", "Bar"}
        };

        // Create a new document.
        Document document = new Document(PageSize.LETTER.rotate());
        Font bold = new Font(Font.FontFamily.HELVETICA, 10, Font.BOLD);
        Font normal = new Font(Font.FontFamily.HELVETICA, 10, Font.NORMAL);

        try {
            // Get an instance of PdfWriter and create a Table.pdf file
            // as an output.
            PdfWriter.getInstance(document,
                    new FileOutputStream(new File("TableDemo.pdf")));
            document.open();

            // Create an instance of PdfPTable. After that we transform
            // the header and data array into a PdfPCell object. When
            // each table row is complete we have to call the
            // table.completeRow() method.
            //
            // For better presentation we also set the cell normal name,
            // size and weight. And we also define the background fill
            // for the cell.
            PdfPTable table = new PdfPTable(headers.length);
            for (String header : headers) {
                PdfPCell cell = new PdfPCell();
                cell.setGrayFill(0.9f);
                cell.setPhrase(new Phrase(header, bold));
                table.addCell(cell);
            }
            table.completeRow();

            for (String[] row : data) {
                for (String column : row) {
                    PdfPCell cell = new PdfPCell();
                    cell.setPhrase(new Phrase(column, normal));
                    table.addCell(cell);
                }
                table.completeRow();
            }

            document.addTitle("iText PDF Table Demo");
            document.add(table);
        } catch (DocumentException | FileNotFoundException e) {
            e.printStackTrace();
        } finally {
            document.close();
        }
    }
}

Maven Dependencies

<dependency>
    <groupId>com.itextpdf</groupId>
    <artifactId>itextpdf</artifactId>
    <version>5.5.9</version>
</dependency>