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/events/FieldPositioningEvents.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.events;

import java.io.IOException;
import java.util.HashMap;

import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.ExceptionConverter;
import com.itextpdf.text.Rectangle;
import com.itextpdf.text.error_messages.MessageLocalization;
import com.itextpdf.text.pdf.PdfContentByte;
import com.itextpdf.text.pdf.PdfFormField;
import com.itextpdf.text.pdf.PdfName;
import com.itextpdf.text.pdf.PdfPCell;
import com.itextpdf.text.pdf.PdfPCellEvent;
import com.itextpdf.text.pdf.PdfPageEventHelper;
import com.itextpdf.text.pdf.PdfRectangle;
import com.itextpdf.text.pdf.PdfWriter;
import com.itextpdf.text.pdf.TextField;

/**
 * Class that can be used to position AcroForm fields.
 */
public class FieldPositioningEvents extends PdfPageEventHelper implements PdfPCellEvent {

    /**
     * Keeps a map with fields that are to be positioned in inGenericTag.
     */
    protected HashMap<String, PdfFormField> genericChunkFields = new HashMap<String, PdfFormField>();

    /**
     * Keeps the form field that is to be positioned in a cellLayout event.
     */
    protected PdfFormField cellField = null;

    /**
     * The PdfWriter to use when a field has to added in a cell event.
     */
    protected PdfWriter fieldWriter = null;
    /**
     * The PdfFormField that is the parent of the field added in a cell event.
     */
    protected PdfFormField parent = null;

    /** Creates a new event. This constructor will be used if you need to position fields with Chunk objects. */
    public FieldPositioningEvents() {}

    /** Some extra padding that will be taken into account when defining the widget. */
    public float padding;

    /**
     * Add a PdfFormField that has to be tied to a generic Chunk.
     */
    public void addField(String text, PdfFormField field) {
    	genericChunkFields.put(text, field);
    }

    /** Creates a new event. This constructor will be used if you need to position fields with a Cell Event. */
    public FieldPositioningEvents(PdfWriter writer, PdfFormField field) {
    	this.cellField = field;
    	this.fieldWriter = writer;
    }

    /** Creates a new event. This constructor will be used if you need to position fields with a Cell Event. */
    public FieldPositioningEvents(PdfFormField parent, PdfFormField field) {
    	this.cellField = field;
    	this.parent = parent;
    }

    /** Creates a new event. This constructor will be used if you need to position fields with a Cell Event.
     * @throws DocumentException
     * @throws IOException*/
    public FieldPositioningEvents(PdfWriter writer, String text) throws IOException, DocumentException {
    	this.fieldWriter = writer;
    	TextField tf = new TextField(writer, new Rectangle(0, 0), text);
		tf.setFontSize(14);
		cellField = tf.getTextField();
	}

    /** Creates a new event. This constructor will be used if you need to position fields with a Cell Event.
     * @throws DocumentException
     * @throws IOException*/
    public FieldPositioningEvents(PdfWriter writer, PdfFormField parent, String text) throws IOException, DocumentException {
    	this.parent = parent;
    	TextField tf = new TextField(writer, new Rectangle(0, 0), text);
		tf.setFontSize(14);
		cellField = tf.getTextField();
	}

	/**
	 * @param padding The padding to set.
	 */
	public void setPadding(float padding) {
		this.padding = padding;
	}

	/**
	 * @param parent The parent to set.
	 */
	public void setParent(PdfFormField parent) {
		this.parent = parent;
	}
	/**
	 * @see com.itextpdf.text.pdf.PdfPageEvent#onGenericTag(com.itextpdf.text.pdf.PdfWriter, com.itextpdf.text.Document, com.itextpdf.text.Rectangle, java.lang.String)
	 */
	@Override
    public void onGenericTag(PdfWriter writer, Document document,
			Rectangle rect, String text) {
		rect.setBottom(rect.getBottom() - 3);
		PdfFormField field = genericChunkFields.get(text);
		if (field == null) {
			TextField tf = new TextField(writer, new Rectangle(rect.getLeft(padding), rect.getBottom(padding), rect.getRight(padding), rect.getTop(padding)), text);
			tf.setFontSize(14);
			try {
				field = tf.getTextField();
			} catch (Exception e) {
				throw new ExceptionConverter(e);
			}
		}
		else {
			field.put(PdfName.RECT,  new PdfRectangle(rect.getLeft(padding), rect.getBottom(padding), rect.getRight(padding), rect.getTop(padding)));
		}
		if (parent == null)
			writer.addAnnotation(field);
		else
			parent.addKid(field);
	}

	/**
	 * @see com.itextpdf.text.pdf.PdfPCellEvent#cellLayout(com.itextpdf.text.pdf.PdfPCell, com.itextpdf.text.Rectangle, com.itextpdf.text.pdf.PdfContentByte[])
	 */
	public void cellLayout(PdfPCell cell, Rectangle rect, PdfContentByte[] canvases) {
		if (cellField == null || fieldWriter == null && parent == null) throw new IllegalArgumentException(MessageLocalization.getComposedMessage("you.have.used.the.wrong.constructor.for.this.fieldpositioningevents.class"));
		cellField.put(PdfName.RECT, new PdfRectangle(rect.getLeft(padding), rect.getBottom(padding), rect.getRight(padding), rect.getTop(padding)));
		if (parent == null)
			fieldWriter.addAnnotation(cellField);
		else
			parent.addKid(cellField);
	}
}

⏎ com/itextpdf/text/pdf/events/FieldPositioningEvents.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
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⇒ 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