How do I create Chapter in iText?

By Wayan in iText PDF 0 Comment

This brief example show you how to create chapter in the PDF document using iText. To create chapter we use the com.itextpdf.text.Chapter class. We can pass the chapter title and the chapter number as the parameter for the Chapter constructor.

To create a section for the chapter we can use the com.itextpdf.text.Section class. To add a section we call the Chapter.addSection() method of the Chapter object. Let’s look at the 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 ChapterDemo {
    public static void main(String[] args) {
        // Creates a new document
        Document document = new Document();
        try {
            // Prepare PDF writer and open the document.
            PdfWriter.getInstance(document, new FileOutputStream("ChapterDemo.pdf"));
            document.open();

            // Creates a new Chapter object
            Chapter chapter = new Chapter("Chapter One", 1);

            // Add sections to the chapter
            Section section = chapter.addSection("This is Section 1", 2);
            Paragraph paragraph = new Paragraph("This is the paragraph of the Section 1");
            section.add(paragraph);

            chapter.addSection("This is Section 2", 2);

            document.add(chapter);
        } 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>

Maven Central

How do I create Anchor or link in iText?

By Wayan in iText PDF 2 Comments

This example show you how to use the com.itextpdf.text.Anchor class to create an external link in the PDF document. You can create an instance of Anchor with a phrase of string and set its reference, in this case a website URL, by calling the setReference() method of this object.

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

            String content = "You can learn Java programming on the " +
                    "following website: ";
            Paragraph paragraph = new Paragraph(content);

            // Creates a new anchor that link to external website
            // and add this anchor to the paragraph.
            Anchor anchor = new Anchor("Learn Java by Examples");
            anchor.setReference("https://kodejava.org");
            paragraph.add(anchor);

            doc.add(paragraph);
        } 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>

Maven Central

How do I set Paragraph indentation in iText?

By Wayan in iText PDF 0 Comment

To set paragraph indentation in the iText Paragraph object we can use the setFirstLineIndent(), setIndentationLeft() and setIndentationRight(). These methods accept a float value as a parameter.

The setFirstLineIndent() method set the first line indentation of a paragraph, while the setIndentationLeft() and setIndentationRight() methods set the left and the right indent of the paragraph. Let see an example below:

package org.kodejava.itextpdf;

import com.itextpdf.text.Chunk;
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 ParagraphIndentationDemo {
    private static final String CONTENT = """
            Lorem ipsum dolor sit amet, consectetur adipisicing elit, \
            sed do eiusmod tempor incididunt ut labore et dolore magna \
            aliqua. Ut enim ad minim veniam, quis nostrud exercitation \
            ullamco laboris nisi ut aliquip ex ea commodo consequat. \
            Duis aute irure dolor in  reprehenderit in voluptate velit \
            esse cillum dolore eu fugiat nulla pariatur. Excepteur sint \
            occaecat cupidatat non proident, sunt in culpa qui officia \
            deserunt mollit anim id est laborum.
            """;

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

            Paragraph paragraph = new Paragraph();
            paragraph.add(new Chunk(ParagraphIndentationDemo.CONTENT));

            // Set paragraph's first line indent
            paragraph.setFirstLineIndent(75);

            // Set paragraph's left side indent
            paragraph.setIndentationLeft(50);

            // Set paragraph's right side indent
            paragraph.setIndentationRight(25);
            document.add(paragraph);
        } 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>

Maven Central

How do I set Paragraph alignment in iText?

By Wayan in iText PDF 1 Comment

To set the alignment of a paragraph object we can use the Paragraph.setAlignment() method. We can pass constants such as Paragraph.ALIGN_LEFT, Paragraph.ALIGN_CENTER, Paragraph.ALIGN_RIGHTto the setAlignment() method.

package org.kodejava.itextpdf;

import com.itextpdf.text.Chunk;
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 ParagraphAlignment {
    private static final String CONTENT = """
            Lorem ipsum dolor sit amet, consectetur adipisicing elit, \
            sed do eiusmod tempor incididunt ut labore et dolore magna \
            aliqua. Ut enim ad minim veniam, quis nostrud exercitation \
            ullamco laboris nisi ut aliquip ex ea commodo consequat. \
            Duis aute irure dolor in  reprehenderit in voluptate velit \
            esse cillum dolore eu fugiat nulla pariatur. Excepteur sint \
            occaecat cupidatat non proident, sunt in culpa qui officia \
            deserunt mollit anim id est laborum.
            """;

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

            // Creates a check for the paragraphs contents
            Chunk chunk = new Chunk(ParagraphAlignment.CONTENT);

            // Creates paragraphs and set the alignment of the paragraph.
            // We use the Paragraph.ALIGN_LEFT, Paragraph.ALIGN_CENTER
            // and Paragraph.ALIGN_RIGHT
            Paragraph para1 = new Paragraph(chunk);
            para1.setAlignment(Paragraph.ALIGN_LEFT);
            para1.setSpacingAfter(50);
            document.add(para1);

            Paragraph para2 = new Paragraph(chunk);
            para2.setAlignment(Paragraph.ALIGN_CENTER);
            para2.setSpacingAfter(50);
            document.add(para2);

            Paragraph para3 = new Paragraph(chunk);
            para3.setAlignment(Paragraph.ALIGN_RIGHT);
            document.add(para3);

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

Maven Dependencies

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

Maven Central

How do I set Paragraph line space in iText?

By Wayan in iText PDF 0 Comment

To set the line spacing of a paragraph in iText can be done by passing the line space / leading argument in the Paragraph constructor. In the example below we set the line space to 32. We can also set the space between paragraph by calling the setSpacingBefore() and setSpacingAfter() methods of this object.

package org.kodejava.itextpdf;

import com.itextpdf.text.Chunk;
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 ParagraphLineSpaceDemo {
    public static void main(String[] args) {
        Document doc = new Document();

        try {
            FileOutputStream fos = new FileOutputStream("ParagraphLineSpace.pdf");
            PdfWriter.getInstance(doc, fos);
            doc.open();

            String content = "The quick brown fox jumps over the lazy dog";

            // Setting paragraph line spacing to 32
            Paragraph para1 = new Paragraph(32);

            // Setting the space before and after the paragraph
            para1.setSpacingBefore(50);
            para1.setSpacingAfter(50);
            for (int i = 0; i < 10; i++) {
                para1.add(new Chunk(content));
            }
            doc.add(para1);

            Paragraph para2 = new Paragraph();
            for (int i = 0; i < 10; i++) {
                para2.add(new Chunk(content));
            }
            doc.add(para2);

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

Maven Dependencies

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

Maven Central