PDF - Learn Java by Examples

How do I set the width of a Table in iText?

By Wayan in iText PDF Last modified: June 2, 2023 1 Comment

We can set the width of a table using the setWidthPercentage() method of the com.itextpdf.text.pdf.PdfPTable class. This method accept a float value as a parameter. This method sets the width in a percentage of the width a table will occupy in the page. The default table’s width is 80%.

Let’s see an example on the following code:

package org.kodejava.itextpdf;

import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Phrase;
import com.itextpdf.text.pdf.PdfPCell;
import com.itextpdf.text.pdf.PdfPTable;
import com.itextpdf.text.pdf.PdfWriter;

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

public class TableWidthDemo {
    public static void main(String[] args) {
        Document doc = new Document();
        try {
            PdfWriter.getInstance(doc, new FileOutputStream("TableWidthDemo.pdf"));
            doc.open();

            // Creates a table with 5 columns
            PdfPTable table = new PdfPTable(5);
            table.addCell(new PdfPCell(new Phrase("Cell 1")));
            table.addCell(new PdfPCell(new Phrase("Cell 2")));
            table.addCell(new PdfPCell(new Phrase("Cell 3")));
            table.addCell(new PdfPCell(new Phrase("Cell 4")));
            table.addCell(new PdfPCell(new Phrase("Cell 5")));

            // Sets the width percentage that the table will occupy
            // in the page.
            table.setWidthPercentage(50);
            doc.add(table);
        } catch (DocumentException | FileNotFoundException e) {
            e.printStackTrace();
        } finally {
            doc.close();
        }
    }
}

Maven Dependencies

<dependency>
    <groupId>com.itextpdf</groupId>
    <artifactId>itextpdf</artifactId>
    <version>5.5.13.3</version>
</dependency>

How do I set column width of a Table in iText?

By Wayan in iText PDF Last modified: June 2, 2023 3 Comments

The width of a table column defined relatively between each column. On the following example we define an array floats that stores the column widths. We define the second column twice as big as the first column and the third column is three times bigger than the first column.

To set the width we call the table‘s setWidths() method. This method can accept an array of floats or an array of integers. Here is an example code:

package org.kodejava.itextpdf;

import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Phrase;
import com.itextpdf.text.pdf.PdfPCell;
import com.itextpdf.text.pdf.PdfPTable;
import com.itextpdf.text.pdf.PdfWriter;

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

public class TableColumnWidthDemo {
    public static void main(String[] args) {
        Document doc = new Document();
        try {
            PdfWriter.getInstance(doc, new FileOutputStream("TableColumnWidth.pdf"));
            doc.open();

            PdfPTable table = new PdfPTable(4);
            table.addCell(new PdfPCell(new Phrase("Cell 1")));
            table.addCell(new PdfPCell(new Phrase("Cell 2")));
            table.addCell(new PdfPCell(new Phrase("Cell 3")));
            table.addCell(new PdfPCell(new Phrase("Cell 4")));

            // Defiles the relative width of the columns
            float[] columnWidths = new float[]{10f, 20f, 30f, 10f};
            table.setWidths(columnWidths);

            doc.add(table);
        } catch (DocumentException | FileNotFoundException e) {
            e.printStackTrace();
        } finally {
            doc.close();
        }
    }
}

Maven Dependencies

<dependency>
    <groupId>com.itextpdf</groupId>
    <artifactId>itextpdf</artifactId>
    <version>5.5.13.3</version>
</dependency>

How do I create a List in iText?

By Wayan in iText PDF Last modified: June 2, 2023 0 Comment

You can create a list in iText using the com.itextpdf.text.List. This class represent a list. The list item is created using the com.itextpdf.text.ListItem. You can create an ordered list or unordered list. To create ordered list pass the List.ORDERED as the parameter to class List. To create an unordered list pass the List.UNORDERED.

Let’s see an example below:

package org.kodejava.itextpdf;

import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.List;
import com.itextpdf.text.ListItem;
import com.itextpdf.text.pdf.PdfWriter;

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

public class ListDemo {
    public static void main(String[] args) {
        Document document = new Document();
        try {
            PdfWriter.getInstance(document, new FileOutputStream("ListDemo.pdf"));
            document.open();

            List ordered = new List(List.ORDERED);
            ordered.add(new ListItem("Item 1"));
            ordered.add(new ListItem("Item 2"));
            ordered.add(new ListItem("Item 3"));
            document.add(ordered);

            List unordered = new List(List.UNORDERED);
            unordered.add(new ListItem("Item 1"));
            unordered.add(new ListItem("Item 2"));
            unordered.add(new ListItem("Item 3"));
            document.add(unordered);
        } catch (DocumentException | FileNotFoundException e) {
            e.printStackTrace();
        } finally {
            document.close();
        }
    }
}

Maven Dependencies

<dependency>
    <groupId>com.itextpdf</groupId>
    <artifactId>itextpdf</artifactId>
    <version>5.5.13.3</version>
</dependency>

How do I create Roman or Greek numeral list in iText?

By Wayan in iText PDF Last modified: June 2, 2023 0 Comment

To create a Roman or Greek numeral list we can use special implementation list in the iText. The com.itextpdf.text.RomanList represent a Roman numeral list while the com.itextpdf.text.GreekList represent a Greek numeral list.

The list item can be created using the com.itextpdf.text.ListItem class. Let’s check out an example below:

package org.kodejava.itextpdf;

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

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

public class RomanGreekListDemo {
    public static void main(String[] args) {
        Document doc = new Document();
        try {
            PdfWriter.getInstance(doc, new FileOutputStream("RomanGreekListDemo.pdf"));
            doc.open();

            List roman = new RomanList();
            roman.add(new ListItem("Item 1"));
            roman.add(new ListItem("Item 2"));
            roman.add(new ListItem("Item 3"));
            doc.add(roman);

            List greek = new GreekList();
            greek.add(new ListItem("Item 1"));
            greek.add(new ListItem("Item 2"));
            greek.add(new ListItem("Item 3"));
            doc.add(greek);
        } catch (DocumentException | FileNotFoundException e) {
            e.printStackTrace();
        } finally {
            doc.close();
        }
    }
}

Maven Dependencies

<dependency>
    <groupId>com.itextpdf</groupId>
    <artifactId>itextpdf</artifactId>
    <version>5.5.13.3</version>
</dependency>

How do I create internal Anchor in iText?

By Wayan in iText PDF Last modified: June 2, 2023 1 Comment

The com.itextpdf.text.Anchor class in iText can be used to create an internal link or external link in a PDF document. To create an internal link we must format the anchor reference using the # + referenceName. On the other side the target anchor should be named using the same reference name excluding the # symbol.

To set the reference we use the setReference() method. To define the target anchor we can name the anchor using the setName() method.

package org.kodejava.itextpdf;

import com.itextpdf.text.Anchor;
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.pdf.PdfWriter;

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

public class AnchorInternalDemo {
    public static void main(String[] args) {
        Document document = new Document();
        try {
            PdfWriter.getInstance(document, new FileOutputStream("AnchorInternal.pdf"));
            document.open();

            Anchor anchor = new Anchor("[Continue Here]");
            anchor.setReference("#targetLink");
            Paragraph para1 = new Paragraph("The quick brown fox jumps over the lazy dog. ");
            para1.add(anchor);
            document.add(para1);

            Anchor target = new Anchor("The quick onyx goblin jumps over the lazy dwarf.");
            anchor.setName("targetLink");
            Paragraph para2 = new Paragraph();
            para2.setSpacingBefore(150);
            para2.add(target);
            document.add(para2);

            document.close();
        } catch (DocumentException | FileNotFoundException e) {
            e.printStackTrace();
        } finally {
            document.close();
        }
    }
}

Maven Dependencies

<dependency>
    <groupId>com.itextpdf</groupId>
    <artifactId>itextpdf</artifactId>
    <version>5.5.13.3</version>
</dependency>