iText 5 - Cell Background image with Text

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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>

PositionContentInCell.java

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001.package com.javatutorialcorner.itextpdf;

002. 

003.import com.itextpdf.text.Document;

004.import com.itextpdf.text.DocumentException;

005.import com.itextpdf.text.Element;

006.import com.itextpdf.text.Image;

007.import com.itextpdf.text.Phrase;

008.import com.itextpdf.text.Rectangle;

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

010.import com.itextpdf.text.pdf.PdfContentByte;

011.import com.itextpdf.text.pdf.PdfPCell;

012.import com.itextpdf.text.pdf.PdfPCellEvent;

013.import com.itextpdf.text.pdf.PdfPTable;

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

015.  

016. 

017.import java.io.File;

018.import java.io.FileOutputStream;

019.import java.io.IOException;

020. 

021.public class PositionContentInCell {

022.    public static final String DEST = "C:/JTC/PositionContentInCell.pdf";

023.    public static final String IMG = "C:/JTC/info.png";

024.    public enum POSITION { TOP_LEFT, TOP_RIGHT, BOTTOM_LEFT, BOTTOM_RIGHT };

025.  

026.    class ImageEvent implements PdfPCellEvent {

027.        protected Image img;

028.        public ImageEvent(Image img) {

029.            this.img = img;

030.        }

031.        public void cellLayout(PdfPCell cell, Rectangle position, PdfContentByte[] canvases) {

032.            img.scaleToFit(position.getWidth(), position.getHeight());

033.            img.setAbsolutePosition(position.getLeft() + (position.getWidth() - img.getScaledWidth()) / 2,

034.                    position.getBottom() + (position.getHeight() - img.getScaledHeight()) / 2);

035.            PdfContentByte canvas = canvases[PdfPTable.BACKGROUNDCANVAS];

036.            try {

037.                canvas.addImage(img);

038.            } catch (DocumentException ex) {

039.                // do nothing

040.            }

041.        }

042.    }

043.  

044.    class PositionEvent implements PdfPCellEvent {

045.        protected Phrase content;

046.        protected POSITION pos;

047.  

048.        public PositionEvent(Phrase content, POSITION pos) {

049.            this.content = content;

050.            this.pos = pos;

051.        }

052.  

053.        public void cellLayout(PdfPCell cell, Rectangle position, PdfContentByte[] canvases) {

054.            PdfContentByte canvas = canvases[PdfPTable.TEXTCANVAS];

055.            float x = 0;

056.            float y = 0;

057.            int alignment = 0;

058.            switch (pos) {

059.                case TOP_LEFT:

060.                    x = position.getLeft(3);

061.                    y = position.getTop(content.getLeading());

062.                    alignment = Element.ALIGN_LEFT;

063.                    break;

064.                case TOP_RIGHT:

065.                    x = position.getRight(3);

066.                    y = position.getTop(content.getLeading());

067.                    alignment = Element.ALIGN_RIGHT;

068.                    break;

069.                case BOTTOM_LEFT:

070.                    x = position.getLeft(3);

071.                    y = position.getBottom(3);

072.                    alignment = Element.ALIGN_LEFT;

073.                    break;

074.                case BOTTOM_RIGHT:

075.                    x = position.getRight(3);

076.                    y = position.getBottom(3);

077.                    alignment = Element.ALIGN_RIGHT;

078.                    break;

079.            }

080.            ColumnText.showTextAligned(canvas, alignment, content, x, y, 0);

081.        }

082.    }

083.  

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

085.        File file = new File(DEST);

086.        file.getParentFile().mkdirs();

087.        new PositionContentInCell().createPdf(DEST);

088.    }

089.  

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

091.        // 1. Create a Document which contains a table:

092.        Document document = new Document();

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

094.        document.open();

095.        PdfPTable table = new PdfPTable(2);

096.        PdfPCell cell1 = new PdfPCell();

097.        PdfPCell cell2 = new PdfPCell();

098.        PdfPCell cell3 = new PdfPCell();

099.        PdfPCell cell4 = new PdfPCell();

100.        // 2. Inside that table, make each cell with specific height:

101.        cell1.setFixedHeight(50);

102.        cell2.setFixedHeight(50);

103.        cell3.setFixedHeight(50);

104.        cell4.setFixedHeight(50);

105.        // 3. Each cell has the same background image

106.        ImageEvent imgEvent = new ImageEvent(Image.getInstance(IMG));

107.        cell1.setCellEvent(imgEvent);

108.        cell2.setCellEvent(imgEvent);

109.        cell3.setCellEvent(imgEvent);

110.        cell4.setCellEvent(imgEvent);

111.        // 4. Add text in front of the image at specific position

112.        cell1.setCellEvent(new PositionEvent(new Phrase("Top left"), POSITION.TOP_LEFT));

113.        cell2.setCellEvent(new PositionEvent(new Phrase("Top right"), POSITION.TOP_RIGHT));

114.        cell3.setCellEvent(new PositionEvent(new Phrase("Bottom left"), POSITION.BOTTOM_LEFT));

115.        cell4.setCellEvent(new PositionEvent(new Phrase("Bottom right"), POSITION.BOTTOM_RIGHT));

116.        // Wrap it all up!

117.        table.addCell(cell1);

118.        table.addCell(cell2);

119.        table.addCell(cell3);

120.        table.addCell(cell4);

121.        document.add(table);

122.        document.close();

123.    }

124.}

Output
Reference : iText Website

iText iText5 Java PDF 6/28/2017 07:06:00 pm