Java Read and Write PDF

In this post, I will show you How to read and write PDF in java using iText PDF library.

Download Maven.

<dependency>
    <groupId>com.itextpdf</groupId>
    <artifactId>itextpdf</artifactId>
    <version>5.5.10</version>
</dependency

1. Write PDF using iTExt

public class PdfWriteExample {

    private static final String FILE_NAME = "/test/itext.pdf";

    public static void main(String[] args) {
        writeUsingIText();
    }

    private static void writeUsingIText() {

        Document document = new Document();

        try {

            PdfWriter.getInstance(document, new FileOutputStream(new File(FILE_NAME)));

            //open
            document.open();

            Paragraph p = new Paragraph();
            p.add("This is my text 1");
            p.setAlignment(Element.ALIGN_CENTER);

            document.add(p);

            Paragraph p2 = new Paragraph();
            p2.add("This is my text 2"); //no alignment

            document.add(p2);

            Font f = new Font();
            f.setStyle(Font.BOLD);
            f.setSize(8);

            document.add(new Paragraph("This is my text 3", f));

            //close
            document.close();

            System.out.println("Done");

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

    }
}

2. Read PDF using iText

public class PdfReadExample {

    private static final String FILE_NAME = "/test/itext.pdf";

    public static void main(String[] args) {

        PdfReader reader;

        try {

            reader = new PdfReader("f:/itext.pdf");

            String textFromPage = PdfTextExtractor.getTextFromPage(reader, 1);

            System.out.println(textFromPage);

            reader.close();

        } catch (IOException e) {
            e.printStackTrace();
        }

    }

}

Result:

This is my text 1
This is my text 2
This is my text 3

Good luck!