itextpdf.jar is a component in iText 5 Java library to provide core functionalities. iText Java library allows you to generate and manage PDF documents.

The Source Code files are provided at iText GitHub site.

You can compile it to generate your JAR file, using pom.xml as the build configuration file.

The source code of itextpdf-5.5.14.jar is provided below:

⏎ com/itextpdf/text/pdf/PdfDiv.java

/*
 *
 * This file is part of the iText (R) project.
    Copyright (c) 1998-2020 iText Group NV
 * Authors: Bruno Lowagie, Paulo Soares, et al.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License version 3
 * as published by the Free Software Foundation with the addition of the
 * following permission added to Section 15 as permitted in Section 7(a):
 * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
 * ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
 * OF THIRD PARTY RIGHTS
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU Affero General Public License for more details.
 * You should have received a copy of the GNU Affero General Public License
 * along with this program; if not, see http://www.gnu.org/licenses or write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA, 02110-1301 USA, or download the license from the following URL:
 * http://itextpdf.com/terms-of-use/
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License.
 *
 * In accordance with Section 7(b) of the GNU Affero General Public License,
 * a covered work must retain the producer line in every PDF that is created
 * or manipulated using iText.
 *
 * You can be released from the requirements of the license by purchasing
 * a commercial license. Buying such a license is mandatory as soon as you
 * develop commercial activities involving the iText software without
 * disclosing the source code of your own applications.
 * These activities include: offering paid services to customers as an ASP,
 * serving PDFs on the fly in a web application, shipping iText with a closed
 * source product.
 *
 * For more information, please contact iText Software Corp. at this
 * address: sales@itextpdf.com
 */
package com.itextpdf.text.pdf;

import com.itextpdf.awt.geom.AffineTransform;
import com.itextpdf.text.*;
import com.itextpdf.text.api.Spaceable;
import com.itextpdf.text.pdf.interfaces.IAccessibleElement;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

/**
 * A special element to put a collection of elements at an absolute position.
 */
public class PdfDiv implements Element, Spaceable, IAccessibleElement {
    public enum FloatType {NONE, LEFT, RIGHT};

    public enum PositionType {STATIC, ABSOLUTE, FIXED, RELATIVE};

    public enum DisplayType {NONE, BLOCK, INLINE, INLINE_BLOCK, INLINE_TABLE, LIST_ITEM, RUN_IN, TABLE, TABLE_CAPTION, TABLE_CELL, TABLE_COLUMN_GROUP, TABLE_COLUMN, TABLE_FOOTER_GROUP,
    TABLE_HEADER_GROUP, TABLE_ROW, TABLE_ROW_GROUP};

    public enum BorderTopStyle {DOTTED, DASHED, SOLID, DOUBLE, GROOVE, RIDGE, INSET, OUTSET};

    private ArrayList<Element> content;

    private Float left = null;

    private Float top = null;

    private Float right = null;

    private Float bottom = null;

    private Float width = null;

    private Float height = null;

    private Float percentageHeight = null;

    private Float percentageWidth = null;

    private float contentWidth = 0;

    private float contentHeight = 0;

    private int textAlignment = Element.ALIGN_UNDEFINED;

    private float paddingLeft = 0;

    private float paddingRight = 0;

    private float paddingTop = 0;

    private float paddingBottom = 0;

    private FloatType floatType = FloatType.NONE;

    private PositionType position = PositionType.STATIC;

    private DisplayType display;

    private FloatLayout floatLayout = null;

    private BorderTopStyle borderTopStyle;

    private float yLine;

    protected int runDirection = PdfWriter.RUN_DIRECTION_NO_BIDI;

    /**
     * Defines if the div should be kept on one page if possible
     */
    private boolean keepTogether;

    protected PdfName role = PdfName.DIV;
    protected HashMap<PdfName, PdfObject> accessibleAttributes = null;
    protected AccessibleElementId id = new AccessibleElementId();

    public float getContentWidth() {
        return contentWidth;
    }

    public void setContentWidth(float contentWidth) {
        this.contentWidth = contentWidth;
    }

    public float getContentHeight() {
        return contentHeight;
    }

    public void setContentHeight(float contentHeight) {
        this.contentHeight = contentHeight;
    }

    /**
     * IMPROTANT NOTE: be careful with this method because it would return correct result
     * only in case if {@link PdfDiv#layout(PdfContentByte, boolean, boolean, float, float, float, float)}
     * was already called.
     * @return the actual height the div would require to layout it's content
     */

    public float getActualHeight() {
        return height != null && height >= contentHeight ? height : contentHeight;
    }

    /**
     * IMPROTANT NOTE: be careful with this method because it would return correct result
     * only in case if {@link PdfDiv#layout(PdfContentByte, boolean, boolean, float, float, float, float)}
     * was already called.
     * @return the actual width the div would require to layout it's content
     */
    public float getActualWidth() {
        return width != null && width >= contentWidth ? width : contentWidth;
    }

    public Float getPercentageHeight() {
        return percentageHeight;
    }

    public void setPercentageHeight(Float percentageHeight) {
        this.percentageHeight = percentageHeight;
    }

    public Float getPercentageWidth() {
        return percentageWidth;
    }

    public void setPercentageWidth(Float percentageWidth) {
        this.percentageWidth = percentageWidth;
    }


    public DisplayType getDisplay() {
        return display;
    }

    public void setDisplay(DisplayType display) {
        this.display = display;
    }


    public BaseColor getBackgroundColor() {
        return backgroundColor;
    }

    public void setBackgroundColor(BaseColor backgroundColor) {
        this.backgroundColor = backgroundColor;
    }

    /**
     * Image will be scaled to fit in the div occupied area.
     */
    public void setBackgroundImage(Image image) {
        this.backgroundImage = image;
    }

    /**
     * Image will be scaled to fit in the div occupied area.
     */
    public void setBackgroundImage(Image image, float width, float height) {
        this.backgroundImage = image;
        this.backgroundImageWidth = width;
        this.backgroundImageHeight = height;
    }

    public float getYLine() {
        return yLine;
    }

    public int getRunDirection() {
        return runDirection;
    }

    public void setRunDirection(int runDirection) {
        this.runDirection = runDirection;
    }

    public boolean getKeepTogether() {
        return keepTogether;
    }

    public void setKeepTogether(boolean keepTogether) {
        this.keepTogether = keepTogether;
    }

    private BaseColor backgroundColor = null;

    private Image backgroundImage;
    private Float backgroundImageWidth;
    private Float backgroundImageHeight;

    /**
     * The spacing before the table.
     */
    protected float spacingBefore;

    /**
     * The spacing after the table.
     */
    protected float spacingAfter;

    public PdfDiv() {
        content = new ArrayList<Element>();
        keepTogether = false;
    }

    /**
     * Gets all the chunks in this element.
     *
     * @return	an <CODE>ArrayList</CODE>
     */
    public List<Chunk> getChunks() {
        return new ArrayList<Chunk>();
    }

    /**
     * Gets the type of the text element.
     *
     * @return	a type
     */
    public int type() {
        return Element.DIV;
    }

	/**
	 * @see com.itextpdf.text.Element#isContent()
	 * @since	iText 2.0.8
	 */
	public boolean isContent() {
		return true;
	}

	/**
	 * @see com.itextpdf.text.Element#isNestable()
	 * @since	iText 2.0.8
	 */
	public boolean isNestable() {
		return true;
	}

    /**
     * Processes the element by adding it (or the different parts) to an
     * <CODE>ElementListener</CODE>.
     *
     * @param	listener	an <CODE>ElementListener</CODE>
     * @return	<CODE>true</CODE> if the element was processed successfully
     */
    public boolean process(final ElementListener listener) {
        try {
            return listener.add(this);
        }
        catch(DocumentException de) {
            return false;
        }
    }

    /**
     * Sets the spacing before this table.
     *
     * @param	spacing		the new spacing
     */
    public void setSpacingBefore(final float spacing) {
        this.spacingBefore = spacing;
    }

    /**
     * Sets the spacing after this table.
     *
     * @param	spacing		the new spacing
     */
    public void setSpacingAfter(final float spacing) {
        this.spacingAfter = spacing;
    }

    /**
     * Gets the spacing before this table.
     *
     * @return	the spacing
     */
    public float getSpacingBefore() {
        return spacingBefore;
    }

    /**
     * Gets the spacing after this table.
     *
     * @return	the spacing
     */
    public float getSpacingAfter() {
        return spacingAfter;
    }

    /**
     * Gets the alignment of this paragraph.
     *
     * @return textAlignment
     */
    public int getTextAlignment() {
        return this.textAlignment;
    }


    /**
     * Sets the alignment of this paragraph.
     *
     * @param	textAlignment		the new alignment
     */
    public void setTextAlignment(int textAlignment) {
        this.textAlignment = textAlignment;
    }

    public void addElement(Element element) {
        content.add(element);
    }

    public Float getLeft() {
        return this.left;
    }

    public void setLeft(Float left) {
        this.left = left;
    }

    public Float getRight() {
        return this.right;
    }

    public void setRight(Float right) {
        this.right = right;
    }

    public Float getTop() {
        return this.top;
    }

    public void setTop(Float top) {
        this.top = top;
    }

    public Float getBottom() {
        return this.bottom;
    }

    public void setBottom(Float bottom) {
        this.bottom = bottom;
    }

    public Float getWidth() {
        return this.width;
    }

    public void setWidth(Float width) {
        this.width = width;
    }

    public Float getHeight() {
        return this.height;
    }

    public void setHeight(Float height) {
        this.height = height;
    }

    public float getPaddingLeft() {
        return paddingLeft;
    }

    public void setPaddingLeft(float paddingLeft) {
        this.paddingLeft = paddingLeft;
    }

    public float getPaddingRight() {
        return paddingRight;
    }

    public void setPaddingRight(float paddingRight) {
        this.paddingRight = paddingRight;
    }

    public float getPaddingTop() {
        return paddingTop;
    }

    public void setPaddingTop(float paddingTop) {
        this.paddingTop = paddingTop;
    }

    public float getPaddingBottom() {
        return paddingBottom;
    }

    public void setPaddingBottom(float paddingBottom) {
        this.paddingBottom = paddingBottom;
    }

    public FloatType getFloatType() {
        return floatType;
    }

    public void setFloatType(FloatType floatType) {
        this.floatType = floatType;
    }

    public PositionType getPosition() {
        return position;
    }

    public void setPosition(PositionType position) {
        this.position = position;
    }

    public ArrayList<Element> getContent() {
        return content;
    }

    public void setContent(ArrayList<Element> content) {
        this.content = content;
    }

    public BorderTopStyle getBorderTopStyle() {
        return borderTopStyle;
    }

    public void setBorderTopStyle(BorderTopStyle borderTopStyle) {
        this.borderTopStyle = borderTopStyle;
    }

    public int layout(final PdfContentByte canvas, boolean useAscender, boolean simulate, final float llx, final float lly, final float urx, final float ury) throws DocumentException {

        float leftX = Math.min(llx, urx);
        float maxY = Math.max(lly, ury);
        float minY = Math.min(lly, ury);
        float rightX = Math.max(llx, urx);
        yLine = maxY;
        boolean contentCutByFixedHeight = false;

        if (width != null && width > 0) {
            if (width < rightX - leftX) {
                rightX = leftX + width;
            } else if (width > rightX - leftX) {
                return ColumnText.NO_MORE_COLUMN;
            }
        } else if (percentageWidth != null) {
            contentWidth = (rightX - leftX) * percentageWidth;
            rightX = leftX + contentWidth;
        } else if (percentageWidth == null) {
            if (this.floatType == FloatType.NONE && (this.display == null ||
                this.display == DisplayType.BLOCK || this.display == DisplayType.LIST_ITEM ||
                this.display == DisplayType.RUN_IN)){
                contentWidth = rightX - leftX;
            }
        }

        if (height != null && height > 0) {
            if (height < maxY - minY) {
                minY = maxY - height;
                contentCutByFixedHeight = true;
            } else if (height > maxY - minY) {
                return ColumnText.NO_MORE_COLUMN;
            }
        } else if (percentageHeight != null) {
            if (percentageHeight < 1.0) {
                contentCutByFixedHeight = true;
            }
            contentHeight = (maxY - minY) * percentageHeight;
            minY = maxY - contentHeight;
        }

        if (!simulate && position == PdfDiv.PositionType.RELATIVE) {
            Float translationX = null;
            if (left != null) {
                translationX = left;
            } else if (right != null) {
                translationX = -right;
            } else {
                translationX = 0f;
            }

            Float translationY = null;
            if (top != null) {
                translationY = -top;
            } else if (bottom != null) {
                translationY = bottom;
            } else {
                translationY = 0f;
            }
            canvas.saveState();
            canvas.transform(new AffineTransform(1f, 0, 0, 1f, translationX, translationY));
        }

        if (!simulate) {
            if ((backgroundColor != null || backgroundImage != null) && getActualWidth() > 0  && getActualHeight() > 0) {
                float backgroundWidth = getActualWidth();
                float backgroundHeight = getActualHeight();
                if (width != null) {
                    backgroundWidth = width > 0 ? width : 0;
                }

                if (height != null) {
                    backgroundHeight = height > 0 ? height : 0;
                }
                if (backgroundWidth > 0 && backgroundHeight > 0) {
                    Rectangle background = new Rectangle(leftX, maxY - backgroundHeight, backgroundWidth+leftX, maxY);
                    if (backgroundColor != null) {
                        background.setBackgroundColor(backgroundColor);
                        PdfArtifact artifact = new PdfArtifact();
                        canvas.openMCBlock(artifact);
                        canvas.rectangle(background);
                        canvas.closeMCBlock(artifact);
                    }
                    if (backgroundImage != null) {
                        if (backgroundImageWidth == null) {
                            backgroundImage.scaleToFit(background);
                        } else {
                            backgroundImage.scaleAbsolute(backgroundImageWidth, backgroundImageHeight);
                        }
                        backgroundImage.setAbsolutePosition(background.getLeft(), background.getBottom());
                        canvas.openMCBlock(backgroundImage);
                        canvas.addImage(backgroundImage);
                        canvas.closeMCBlock(backgroundImage);
                    }
                }
            }
        }

        if (percentageWidth == null) {
            contentWidth = 0;
        }
        if (percentageHeight == null) {
            contentHeight = 0;
        }

        minY += paddingBottom;
        leftX += paddingLeft;
        rightX -= paddingRight;

        yLine -= paddingTop;

        int status = ColumnText.NO_MORE_TEXT;

        if (!content.isEmpty()) {
            if (this.floatLayout == null) {
                ArrayList<Element> floatingElements = new ArrayList<Element>(content);
                floatLayout = new FloatLayout(floatingElements, useAscender);
                floatLayout.setRunDirection(runDirection);
            }

            floatLayout.setSimpleColumn(leftX, minY, rightX, yLine);
            if (getBorderTopStyle() != null) {
                floatLayout.compositeColumn.setIgnoreSpacingBefore(false);
            }

            status = floatLayout.layout(canvas, simulate);
            yLine = floatLayout.getYLine();
            if (percentageWidth == null && contentWidth < floatLayout.getFilledWidth()) {
                contentWidth = floatLayout.getFilledWidth();
            }
        }


        if (!simulate && position == PdfDiv.PositionType.RELATIVE) {
            canvas.restoreState();
        }

        yLine -= paddingBottom;
        if (percentageHeight == null) {
            contentHeight = maxY - yLine;
        }

        if (percentageWidth == null) {
            contentWidth += paddingLeft + paddingRight;
        }

        return contentCutByFixedHeight ? ColumnText.NO_MORE_TEXT : status;
    }

    public PdfObject getAccessibleAttribute(final PdfName key) {
        if (accessibleAttributes != null)
            return accessibleAttributes.get(key);
        else
            return null;
    }

    public void setAccessibleAttribute(final PdfName key, final PdfObject value) {
        if (accessibleAttributes == null)
            accessibleAttributes = new HashMap<PdfName, PdfObject>();
        accessibleAttributes.put(key, value);
    }

    public HashMap<PdfName, PdfObject> getAccessibleAttributes() {
        return accessibleAttributes;
    }

    public PdfName getRole() {
        return role;
    }

    public void setRole(final PdfName role) {
        this.role = role;
    }

    public AccessibleElementId getId() {
        return id;
    }

    public void setId(final AccessibleElementId id) {
        this.id = id;
    }

    public boolean isInline() {
        return false;
    }
}

⏎ com/itextpdf/text/pdf/PdfDiv.java

Or download all of them as a single archive file:

File name: itextpdf-5.5.14-fyi.zip
File size: 2163839 bytes
Release date: 2009-10-09
Download 

⇒ iText-2.1.6.jar - iText, a JAVA-PDF library

⇐ iText layout.jar Source Code

⇑ Download and Install iText Java Library

⇑⇑ iText for PDF Generation