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/xml/xmp/DublinCoreSchema.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.xml.xmp;


import com.itextpdf.xmp.XMPConst;
import com.itextpdf.xmp.XMPException;
import com.itextpdf.xmp.XMPMeta;
import com.itextpdf.xmp.XMPUtils;
import com.itextpdf.xmp.options.PropertyOptions;

/**
 * An implementation of an XmpSchema.
 */
@Deprecated
public class DublinCoreSchema extends XmpSchema {

	private static final long serialVersionUID = -4551741356374797330L;
	/** default namespace identifier*/
	public static final String DEFAULT_XPATH_ID = "dc";
	/** default namespace uri*/
	public static final String DEFAULT_XPATH_URI = "http://purl.org/dc/elements/1.1/";
	
	/** External Contributors to the resource (other than the authors). */
	public static final String CONTRIBUTOR = "dc:contributor";
	/** The extent or scope of the resource. */
	public static final String COVERAGE = "dc:coverage";
	/** The authors of the resource (listed in order of precedence, if significant). */
	public static final String CREATOR = "dc:creator";
	/** Date(s) that something interesting happened to the resource. */
	public static final String DATE = "dc:date";
	/** A textual description of the content of the resource. Multiple values may be present for different languages. */
	public static final String DESCRIPTION = "dc:description";
	/** The file format used when saving the resource. Tools and applications should set this property to the save format of the data. It may include appropriate qualifiers. */
	public static final String FORMAT = "dc:format";
	/** Unique identifier of the resource. */
	public static final String IDENTIFIER = "dc:identifier";
	/** An unordered array specifying the languages used in the	resource. */
	public static final String LANGUAGE = "dc:language";
	/** Publishers. */
	public static final String PUBLISHER = "dc:publisher";
	/** Relationships to other documents. */
	public static final String RELATION = "dc:relation";
	/** Informal rights statement, selected by language. */
	public static final String RIGHTS = "dc:rights";
	/** Unique identifier of the work from which this resource was derived. */
	public static final String SOURCE = "dc:source";
	/** An unordered array of descriptive phrases or keywords that specify the topic of the content of the resource. */
	public static final String SUBJECT = "dc:subject";
	/** The title of the document, or the name given to the resource. Typically, it will be a name by which the resource is formally known. */
	public static final String TITLE = "dc:title";
	/** A document type; for example, novel, poem, or working paper. */
	public static final String TYPE = "dc:type";

	
	public DublinCoreSchema() {
		super("xmlns:" + DEFAULT_XPATH_ID + "=\"" + DEFAULT_XPATH_URI + "\"");
		setProperty(FORMAT, "application/pdf");
	}
	
	/**
	 * Adds a title.
	 * @param title
	 */
	public void addTitle(String title) {
		XmpArray array = new XmpArray(XmpArray.ALTERNATIVE);
		array.add(title);
		setProperty(TITLE, array);
	}

    /**
     * Adds a title.
     * @param title
     */
    public void addTitle(LangAlt title) {
        setProperty(TITLE, title);
    }

    /**
	 * Adds a description.
	 * @param desc
	 */
	public void addDescription(String desc) {
		XmpArray array = new XmpArray(XmpArray.ALTERNATIVE);
		array.add(desc);
		setProperty(DESCRIPTION, array);
	}

    /**
     * Adds a description.
     * @param desc
     */
    public void addDescription(LangAlt desc) {
        setProperty(DESCRIPTION, desc);
    }

    /**
	 * Adds a subject.
	 * @param subject
	 */
	public void addSubject(String subject) {
		XmpArray array = new XmpArray(XmpArray.UNORDERED);
		array.add(subject);
		setProperty(SUBJECT, array);
	}

	
	/**
	 * Adds a subject.
	 * @param subject array of subjects
	 */
	public void addSubject(String[] subject) {
		XmpArray array = new XmpArray(XmpArray.UNORDERED);
		for (int i = 0; i < subject.length; i++) {
			array.add(subject[i]);
		}
		setProperty(SUBJECT, array);
	}
	
	/**
	 * Adds a single author.
	 * @param author
	 */
	public void addAuthor(String author) {
		XmpArray array = new XmpArray(XmpArray.ORDERED);
		array.add(author);
		setProperty(CREATOR, array);
	}

	/**
	 * Adds an array of authors.
	 * @param author
	 */
	public void addAuthor(String[] author) {
		XmpArray array = new XmpArray(XmpArray.ORDERED);
		for (int i = 0; i < author.length; i++) {
			array.add(author[i]);
		}
		setProperty(CREATOR, array);
	}

	/**
	 * Adds a single publisher.
	 * @param publisher
	 */
	public void addPublisher(String publisher) {
		XmpArray array = new XmpArray(XmpArray.ORDERED);
		array.add(publisher);
		setProperty(PUBLISHER, array);
	}

	/**
	 * Adds an array of publishers.
	 * @param publisher
	 */
	public void addPublisher(String[] publisher) {
		XmpArray array = new XmpArray(XmpArray.ORDERED);
		for (int i = 0; i < publisher.length; i++) {
			array.add(publisher[i]);
		}
		setProperty(PUBLISHER, array);
	}
}

⏎ com/itextpdf/text/xml/xmp/DublinCoreSchema.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

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