Objects in columns

Examples in answer to questions such as:

Click How to continue an ordered list on a second page?

columntextparagraphs

JAVA

/**
 * Example written by Bruno Lowagie in answer to:
 * http://stackoverflow.com/questions/19976343/how-to-set-the-paragraph-of-itext-pdf-file-as-rectangle-with-background-color-in
 */
package sandbox.objects;

import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.Rectangle;
import com.itextpdf.text.pdf.ColumnText;
import com.itextpdf.text.pdf.PdfContentByte;
import com.itextpdf.text.pdf.PdfWriter;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import sandbox.WrapToTest;

@WrapToTest
public class ColumnTextParagraphs {

    public static final String DEST = "results/objects/column_paragraphs.pdf";

    public static final String TEXT = "This is some long paragraph that will be added over and over again to prove a point.";
    public static final Rectangle[] COLUMNS = {
        new Rectangle(36, 36, 290, 806),
        new Rectangle(305, 36, 559, 806)
    };
    
    public static void main(String[] args) throws IOException, DocumentException {
        File file = new File(DEST);
        file.getParentFile().mkdirs();
        new ColumnTextParagraphs().createPdf(DEST);
    }

    public void createPdf(String dest) throws IOException, DocumentException {
        // step 1
        Document document = new Document();
        // step 2
        PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(dest));
        // step 3
        document.open();
        // step 4
        PdfContentByte canvas = writer.getDirectContent();
        ColumnText ct = new ColumnText(canvas);
        int side_of_the_page = 0;
        ct.setSimpleColumn(COLUMNS[side_of_the_page]);
        int paragraphs = 0;
        while (paragraphs < 30) {
            ct.addElement(new Paragraph(String.format("Paragraph %s: %s", ++paragraphs, TEXT)));
            while (ColumnText.hasMoreText(ct.go())) {
                if (side_of_the_page == 0) {
                    side_of_the_page = 1;
                    canvas.moveTo(297.5f, 36);
                    canvas.lineTo(297.5f, 806);
                    canvas.stroke();
                }
                else {
                    side_of_the_page = 0;
                    document.newPage();
                }
                ct.setSimpleColumn(COLUMNS[side_of_the_page]);
            }
        }
        // step 5
        document.close();
    }
}

columntextparagraphs2

JAVA

/**
 * Example written by Bruno Lowagie in answer to:
 * http://stackoverflow.com/questions/29378407/how-can-you-eliminate-white-space-in-multiple-columns-using-itextsharp
 */
package sandbox.objects;

import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.Rectangle;
import com.itextpdf.text.pdf.ColumnText;
import com.itextpdf.text.pdf.PdfContentByte;
import com.itextpdf.text.pdf.PdfWriter;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import sandbox.WrapToTest;

@WrapToTest
public class ColumnTextParagraphs2 {

    public static final String DEST = "results/objects/column_paragraphs2.pdf";

    public static final String TEXT = "This is some long paragraph that will be added over and over again to prove a point.";
    public static final float COLUMN_WIDTH = 254;
    public static final float ERROR_MARGIN = 16;
    public static final Rectangle[] COLUMNS = {
        new Rectangle(36, 36, 36 + COLUMN_WIDTH, 806),
        new Rectangle(305, 36, 305 + COLUMN_WIDTH, 806)
    };
    
    public static void main(String[] args) throws IOException, DocumentException {
        File file = new File(DEST);
        file.getParentFile().mkdirs();
        new ColumnTextParagraphs2().createPdf(DEST);
    }

    public void createPdf(String dest) throws IOException, DocumentException {
        // step 1
        Document document = new Document();
        // step 2
        PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(dest));
        // step 3
        document.open();
        // step 4
        PdfContentByte canvas = writer.getDirectContent();
        ColumnText ct = new ColumnText(canvas);
        addContent(ct);
        float height = getNecessaryHeight(ct);
        addContent(ct);
        Rectangle left;
        float top = COLUMNS[0].getTop();
        float middle = (COLUMNS[0].getLeft() + COLUMNS[1].getRight()) / 2;
        float columnheight;
        int status = ColumnText.START_COLUMN;
        while (ColumnText.hasMoreText(status)) {
            if (checkHeight(height)) {
                columnheight = COLUMNS[0].getHeight();
                left = COLUMNS[0];
            }
            else {
                columnheight = (height / 2) + ERROR_MARGIN;
                left = new Rectangle(
                    COLUMNS[0].getLeft(),
                    COLUMNS[0].getTop() - columnheight,
                    COLUMNS[0].getRight(),
                    COLUMNS[0].getTop()
                );
           }
            // left half
            ct.setSimpleColumn(left);
            ct.go();
            height -= COLUMNS[0].getTop() - ct.getYLine();
            // separator
            canvas.moveTo(middle, top - columnheight);
            canvas.lineTo(middle, top);
            canvas.stroke();
            // right half
            ct.setSimpleColumn(COLUMNS[1]);
            status = ct.go();
            height -= COLUMNS[1].getTop() - ct.getYLine();
            // new page
            document.newPage();
        }
        // step 5
        document.close();
    }
    
    public void addContent(ColumnText ct) {
        for (int i = 0; i < 35; i++) {
            ct.addElement(new Paragraph(String.format("Paragraph %s: %s", i, TEXT)));
        }
    }
    
    public float getNecessaryHeight(ColumnText ct) throws DocumentException {
        ct.setSimpleColumn(new Rectangle(0, 0, COLUMN_WIDTH, -500000));
        ct.go(true);
        return -ct.getYLine();
    }
    
    public boolean checkHeight(float height) {
        height -= COLUMNS[0].getHeight() + COLUMNS[1].getHeight() + ERROR_MARGIN;
        return height > 0;
    }
}

listincolumn

JAVA

/**
 * Example written by Bruno Lowagie in answer to:
 * http://stackoverflow.com/questions/29277611/itextsharp-continuing-ordered-list-on-second-page-with-a-number-other-than-1
 */
package sandbox.objects;

import com.itextpdf.text.DocumentException;
import com.itextpdf.text.List;
import com.itextpdf.text.Rectangle;
import com.itextpdf.text.pdf.ColumnText;
import com.itextpdf.text.pdf.PdfReader;
import com.itextpdf.text.pdf.PdfStamper;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;

import sandbox.WrapToTest;

@WrapToTest
public class ListInColumn {

    public static final String SRC = "resources/pdfs/pages.pdf";
    public static final String DEST = "results/objects/list_in_column.pdf";
    
    public static void main(String[] args) throws IOException,
            DocumentException {
        File file = new File(DEST);
        file.getParentFile().mkdirs();
        new ListInColumn().manipulatePdf(SRC, DEST);
    }
    
    public void manipulatePdf(String src, String dest) throws IOException, DocumentException {
        PdfReader reader = new PdfReader(src);
        reader.selectPages("1-2");
        PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(dest));
        List list = new List(List.ORDERED);
        for (int i = 0; i < 10; i++) {
            list.add("This is a list item. It will be repeated a number of times. "
                    + "This is done only for test purposes. "
                    + "I want a list item that is distributed over several lines.");
        }
        ColumnText ct = new ColumnText(stamper.getOverContent(1));
        ct.addElement(list);
        Rectangle rect = new Rectangle(250, 400, 500, 806);
        ct.setSimpleColumn(rect);
        int status = ct.go();
        if (ColumnText.hasMoreText(status)) {
            ct.setCanvas(stamper.getOverContent(2));
            ct.setSimpleColumn(rect);
            ct.go();
        }
        stamper.close();
    }
}

columntextchunkimage

JAVA

/*
 * This example was written by Bruno Lowagie in answer to the following question:
 * http://stackoverflow.com/questions/30843163/how-to-add-inline-images-in-itext-when-using-columntext-in-text-mode
 */
package sandbox.columntext;

import com.itextpdf.text.Chunk;
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Image;
import com.itextpdf.text.Phrase;
import com.itextpdf.text.Rectangle;
import com.itextpdf.text.pdf.ColumnText;
import com.itextpdf.text.pdf.PdfWriter;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import sandbox.WrapToTest;

/**
 *
 * @author Bruno Lowagie (iText Software)
 */
@WrapToTest
public class ColumnTextChunkImage {
    public static final String DOG = "resources/images/dog.bmp";
    public static final String FOX = "resources/images/fox.bmp";
    public static final String DEST = "results/columntext/column_text_chunk_image.pdf";
    
    public static void main(String[] args) throws IOException, DocumentException {
        File file = new File(DEST);
        file.getParentFile().mkdirs();
        new ColumnTextChunkImage().createPdf(DEST);
    }
    
    public void createPdf(String dest) throws IOException, DocumentException {
        // step 1
        Document document = new Document();
        // step 2
        PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(dest));
        // step 3
        document.open();
        // step 4
        Image dog = Image.getInstance(DOG);
        Image fox = Image.getInstance(FOX);
        Phrase p = new Phrase("quick brown fox jumps over the lazy dog.");
        p.add("Or, to say it in a more colorful way: quick brown ");
        p.add(new Chunk(fox, 0, 0, true));
        p.add(" jumps over the lazy ");
        p.add(new Chunk(dog, 0, 0, true));
        p.add(".");
        ColumnText ct = new ColumnText(writer.getDirectContent());
        ct.setSimpleColumn(new Rectangle(50, 600, 400, 800));
        ct.addText(p);
        ct.go();
        // step 5
        document.close();
    }
}

tableincolumn

JAVA

package sandbox.objects;

import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.Rectangle;
import com.itextpdf.text.log.LoggerFactory;
import com.itextpdf.text.log.SysoLogger;
import com.itextpdf.text.pdf.ColumnText;
import com.itextpdf.text.pdf.PdfContentByte;
import com.itextpdf.text.pdf.PdfPCell;
import com.itextpdf.text.pdf.PdfPTable;
import com.itextpdf.text.pdf.PdfWriter;
import java.io.File;

import java.io.FileOutputStream;
import java.io.IOException;

import sandbox.WrapToTest;

@WrapToTest
public class TableInColumn {

    public static final String DEST = "results/objects/table_in_column.pdf";
    
    private int status = ColumnText.START_COLUMN;
    private float y_position = 0;
    
    public static void main(String[] args) throws IOException, DocumentException {
        LoggerFactory.getInstance().setLogger(new SysoLogger());
        File file = new File(DEST);
        file.getParentFile().mkdirs();
        new TableInColumn().createPdf(DEST);
    }

    public void createPdf(String dest) throws IOException, DocumentException {
        // step 1
        Document document = new Document();
        // step 2
        PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(dest));
        // step 3
        document.open();
        // step 4
        PdfContentByte pagecanvas = writer.getDirectContent();
        PdfPTable table;
        PdfPCell cell = new PdfPCell();
        for (int i = 1; i <= 30; i++)
            cell.addElement(new Paragraph("Line " + i));
        table = new PdfPTable(1);
        table.setSplitLate(false);
        table.addCell(cell);
        addTable(document, pagecanvas, table);
        document.newPage();
        table = new PdfPTable(1);
        table.setSplitLate(false);
        table.addCell(cell);
        table.addCell(cell);
        addTable(document, pagecanvas, table);
        // step 5
        document.close();
    }

    public void addTable(Document document, PdfContentByte canvas, PdfPTable table) throws DocumentException {
        Rectangle pagedimension = new Rectangle(36, 36, 559, 806);
        System.out.println("Adding table to try");
        drawColumnText(document, canvas, pagedimension, table, true);
        Rectangle rect;
        if (ColumnText.hasMoreText(status)) {
            rect = pagedimension;
        }
        else {
            rect = new Rectangle(36, 36, 559, 806 - ((y_position - 36) / 2));
        }
        System.out.println("Adding table for real");
        drawColumnText(document, canvas, rect, table, false);
    }
    
    public void drawColumnText(Document document, PdfContentByte canvas, Rectangle rect, PdfPTable table, boolean simulate) throws DocumentException {
        ColumnText ct = new ColumnText(canvas);
        ct.setSimpleColumn(rect);
        ct.addElement(table);
        status = ct.go(simulate);
        y_position = ct.getYLine();
        System.out.println("First go: " + status);
        while (!simulate && ColumnText.hasMoreText(status)) {
            document.newPage();
            ct.setSimpleColumn(rect);
            status = ct.go(simulate);
            System.out.println("Next go? " + status);
        }
        System.out.println("Final status: " + status);
    }
}

addlongtable

JAVA

/**
 * Example written by Bruno Lowagie in answer to:
 * http://stackoverflow.com/questions/21838846/inserting-a-table-into-multiple-pdf-pages-with-columntext
 * 
 * The person asking the question forgot to set the canvas for the ColumnText object.
 */
package sandbox.stamper;

import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Rectangle;
import com.itextpdf.text.pdf.ColumnText;
import com.itextpdf.text.pdf.PdfPTable;
import com.itextpdf.text.pdf.PdfReader;
import com.itextpdf.text.pdf.PdfStamper;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;

import sandbox.WrapToTest;

@WrapToTest
public class AddLongTable {


    public static final String SRC = "resources/pdfs/hello.pdf";
    public static final String DEST = "results/stamper/hello_table.pdf";

    public static void main(String[] args) throws IOException, DocumentException {
        File file = new File(DEST);
        file.getParentFile().mkdirs();
        new AddLongTable().manipulatePdf(SRC, DEST);
    }


    public void manipulatePdf(String src, String dest) throws IOException, DocumentException {
        PdfPTable table = new PdfPTable(2);
        for (int i = 0; i < 250; ) {
            table.addCell("Row " + (++i));
            table.addCell("Test");
        }
        PdfReader reader = new PdfReader(src);
        int pageNum = 1;
        Rectangle page = reader.getPageSize(pageNum);
        Rectangle rect = new Rectangle(36, 36, page.getRight(36), page.getTop(72));
        PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(dest));
        ColumnText ct = new ColumnText(stamper.getOverContent(pageNum));
        ct.addElement(table);
        while(true) {
            ct.setSimpleColumn(rect);
            if (!ColumnText.hasMoreText(ct.go()))
                break;
            stamper.insertPage(++pageNum, page);
            ct.setCanvas(stamper.getOverContent(pageNum));
        }
        stamper.close();
        reader.close();
    }
}

simplecolumn

JAVA

/*
 * This example was written by Bruno Lowagie in answer to the following question:
 * http://stackoverflow.com/questions/34445641
 */
package sandbox.columntext;

import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Font;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.Rectangle;
import com.itextpdf.text.pdf.BaseFont;
import com.itextpdf.text.pdf.ColumnText;
import com.itextpdf.text.pdf.PdfContentByte;
import com.itextpdf.text.pdf.PdfWriter;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import sandbox.WrapToTest;

/**
 * @author Bruno Lowagie (iText Software)
 */
@WrapToTest
public class SimpleColumn {
    public static final String DEST = "results/columntext/simple_column.pdf";
    
    public static void main(String[] args) throws IOException, DocumentException {
        File file = new File(DEST);
        file.getParentFile().mkdirs();
        new SimpleColumn().createPdf(DEST);
    }
    public void createPdf(String dest) throws IOException, DocumentException {
        // step 1
        Rectangle rect = new Rectangle(100, 120);
        Document document = new Document(rect);
        // step 2
        PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(dest));
        // step 3
        document.open();
        // step 4
        PdfContentByte canvas = writer.getDirectContent();
        BaseFont baseFont = BaseFont.createFont();
        ColumnText ct = new ColumnText(canvas);
        Font paragraphFont=new Font(baseFont,4.5f);
        ct.setSimpleColumn(9, 70, 70, 95);
        Paragraph paragraph = new Paragraph("REALLLLLLLLLLY LONGGGGGGGGGG text",paragraphFont);
        ct.addElement(paragraph);
        ct.go();
        // step 5
        document.close();
    }
}