iText 5 PDF - How to restrict the number of characters on a single line?

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Maven Dependency

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1.<!-- https://mvnrepository.com/artifact/com.itextpdf/itextpdf -->

2.<dependency>

3. <groupid>com.itextpdf</groupid>

4. <artifactid>itextpdf</artifactid>

5. <version>5.5.11</version>

6.</dependency>

UnderlineParagraphWithTwoParts.java

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001.package com.javatutorialcorner.itextpdf;

002. 

003.import com.itextpdf.text.Chunk;

004.import com.itextpdf.text.Document;

005.import com.itextpdf.text.DocumentException;

006.import com.itextpdf.text.Font;

007.import com.itextpdf.text.Paragraph;

008.import com.itextpdf.text.pdf.BaseFont;

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

010.import com.itextpdf.text.pdf.draw.LineSeparator;

011.import com.itextpdf.text.pdf.draw.VerticalPositionMark;

012.  

013. 

014.import java.io.File;

015.import java.io.FileOutputStream;

016.import java.io.IOException;

017. 

018.public class UnderlineParagraphWithTwoParts {

019.  public static final String DEST = "C:/JTC/UnderlineParagraphWithTwoParts.pdf";

020.      public static final Chunk GLUE = new Chunk(new VerticalPositionMark());

021.  

022.    public static void main(String[] args) throws IOException, DocumentException {

023.        File file = new File(DEST);

024.        file.getParentFile().mkdirs();

025.        new UnderlineParagraphWithTwoParts().createPdf(DEST);

026.    }

027.  

028.    public void createPdf(String dest) throws IOException, DocumentException {

029.        Document document = new Document();

030.        PdfWriter.getInstance(document, new FileOutputStream(dest));

031.        document.open();

032.        BaseFont bf = BaseFont.createFont(BaseFont.COURIER, BaseFont.WINANSI, BaseFont.NOT_EMBEDDED);

033.        float charWidth = bf.getWidth(" ");

034.        int charactersPerLine = 101;

035.        float pageWidth = document.right() - document.left();

036.        float fontSize = (1000 * (pageWidth / (charWidth * charactersPerLine)));

037.        fontSize = ((int)(fontSize * 100)) / 100f;

038.        Font font = new Font(bf, fontSize);

039.        String string2 = "0123456789";

040.        for (int i = 0; i < 5; i++)

041.            string2 = string2 + string2;

042.        addParagraphWithTwoParts1(document, font, "0123", string2);

043.        document.add(new Paragraph("Test 1"));

044.        addParagraphWithTwoParts2(document, font, "0123", string2);

045.        document.add(new Paragraph("Test 1"));

046.        document.add(new Paragraph("Test 1"));

047.        addParagraphWithTwoParts1(document, font, "012345", string2);

048.        document.add(new Paragraph("Test 2"));

049.        addParagraphWithTwoParts2(document, font, "012345", string2);

050.        document.add(new Paragraph("Test 2"));

051.        addParagraphWithTwoParts1(document, font, "0123456789012345", string2);

052.        document.add(new Paragraph("Test 3"));

053.        document.add(new Paragraph("Test 3"));

054.        addParagraphWithTwoParts2(document, font, "0123456789012345", string2);

055.        document.add(new Paragraph("Test 3"));

056.        document.add(new Paragraph("Test 3"));

057.        addParagraphWithTwoParts1(document, font, "012", "0123456789");

058.        document.add(new Paragraph("Test 4"));

059.        addParagraphWithTwoParts2(document, font, "012", "0123456789");

060.        document.add(new Paragraph("Test 4"));

061.        addParagraphWithTwoParts1(document, font, "012345", "01234567890123456789");

062.        document.add(new Paragraph("Test 5"));

063.        addParagraphWithTwoParts2(document, font, "012345", "01234567890123456789");

064.        document.add(new Paragraph("Test 5"));

065.        addParagraphWithTwoParts1(document, font, "0", "01234567890123456789012345678901234567890123456789");

066.        document.add(new Paragraph("Test 6"));

067.        addParagraphWithTwoParts2(document, font, "0", "01234567890123456789012345678901234567890123456789");

068.        document.close();

069.    }

070.  

071.    public void addParagraphWithTwoParts1(Document document, Font font, String string1, String string2)

072.            throws DocumentException {

073.        if (string1 == null) string1 = "";

074.        if (string1.length() > 10)

075.            string1 = string1.substring(0, 10);

076.        Chunk chunk1 = new Chunk(string1, font);

077.        if (string2 == null) string2 = "";

078.        if (string1.length() + string2.length() > 100)

079.            string2 = string2.substring(0, 100 - string1.length());

080.        Chunk chunk2 = new Chunk(string2, font);

081.        Paragraph p = new Paragraph();

082.        p.add(chunk1);

083.        p.add(GLUE);

084.        p.add(chunk2);

085.        LineSeparator line = new LineSeparator();

086.        line.setOffset(-2);

087.        p.add(line);

088.        document.add(p);

089.    }

090.  

091.    public void addParagraphWithTwoParts2(Document document, Font font, String string1, String string2)

092.            throws DocumentException {

093.        if (string1 == null) string1 = "";

094.        if (string1.length() > 10)

095.            string1 = string1.substring(0, 10);

096.        if (string2 == null) string2 = "";

097.        if (string1.length() + string2.length() > 100)

098.            string2 = string2.substring(0, 100 - string1.length());

099.        Paragraph p = new Paragraph(string1 + " " + string2, font);

100.        LineSeparator line = new LineSeparator();

101.        line.setOffset(-2);

102.        p.add(line);

103.        document.add(p);

104.    }

105.}

Output

Reference : iText Website

iText iText5 Java PDF 6/03/2017 11:22:00 pm