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/BaseColor.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;

import com.itextpdf.text.error_messages.MessageLocalization;

/**
 *
 * @author psoares
 */
public class BaseColor {
    public static final BaseColor WHITE = new BaseColor(255, 255, 255);
    public static final BaseColor LIGHT_GRAY = new BaseColor(192, 192, 192);
    public static final BaseColor GRAY = new BaseColor(128, 128, 128);
    public static final BaseColor DARK_GRAY = new BaseColor(64, 64, 64);
    public static final BaseColor BLACK = new BaseColor(0, 0, 0);
    public static final BaseColor RED = new BaseColor(255, 0, 0);
    public static final BaseColor PINK = new BaseColor(255, 175, 175);
    public static final BaseColor ORANGE = new BaseColor(255, 200, 0);
    public static final BaseColor YELLOW = new BaseColor(255, 255, 0);
    public static final BaseColor GREEN = new BaseColor(0, 255, 0);
    public static final BaseColor MAGENTA = new BaseColor(255, 0, 255);
    public static final BaseColor CYAN = new BaseColor(0, 255, 255);
    public static final BaseColor BLUE = new BaseColor(0, 0, 255);
    private static final double FACTOR = 0.7;
    private int value;

    /**
     * Construct a new BaseColor.
     * @param red the value for the red gamma
     * @param green the value for the green gamma
     * @param blue the value for the blue gamma
     * @param alpha the value for the alpha gamma
     */
    public BaseColor(final int red, final int green, final int blue, final int alpha) {
        setValue(red, green, blue, alpha);
    }

    /**
     * @param red
     * @param green
     * @param blue
     */
    public BaseColor(final int red, final int green, final int blue) {
        this(red, green, blue, 255);
    }

    /**
     * Construct a BaseColor with float values.
     * @param red
     * @param green
     * @param blue
     * @param alpha
     */
    public BaseColor(final float red, final float green, final float blue, final float alpha) {
        this((int)(red * 255 + .5), (int)(green * 255 + .5), (int)(blue * 255 + .5), (int)(alpha * 255 + .5));
    }

    /**
     * Construct a BaseColor with float values.
     * @param red
     * @param green
     * @param blue
     */
    public BaseColor(final float red, final float green, final float blue) {
        this(red, green, blue, 1f);
    }
    /**
     * Construct a BaseColor by setting the combined value.
     * @param argb
     */
    public BaseColor(final int argb) {
        value = argb;
    }

    /**
     * @return the combined color value
     */
    public int getRGB() {
        return value;
    }
    /**
     *
     * @return the value for red
     */
    public int getRed() {
        return (getRGB() >> 16) & 0xFF;
    }
    /**
     *
     * @return the value for green
     */
    public int getGreen() {
        return (getRGB() >> 8) & 0xFF;
    }
    /**
     *
     * @return the value for blue
     */
    public int getBlue() {
        return (getRGB() >> 0) & 0xFF;
    }
    /**
     *
     * @return the value for the alpha channel
     */
    public int getAlpha() {
        return (getRGB() >> 24) & 0xff;
    }

    /**
     * Make this BaseColor brighter. Factor used is 0.7.
     * @return the new BaseColor
     */
    public BaseColor brighter() {
        int r = getRed();
        int g = getGreen();
        int b = getBlue();

        int i = (int) (1.0 / (1.0 - FACTOR));
        if (r == 0 && g == 0 && b == 0) {
            return new BaseColor(i, i, i);
        }
        if (r > 0 && r < i)
            r = i;
        if (g > 0 && g < i)
            g = i;
        if (b > 0 && b < i)
            b = i;

        return new BaseColor(Math.min((int) (r / FACTOR), 255),
                Math.min((int) (g / FACTOR), 255),
                Math.min((int) (b / FACTOR), 255));
    }

    /**
     * Make this color darker. Factor used is 0.7
     * @return the new BaseColor
     */
    public BaseColor darker() {
        return new BaseColor(Math.max((int) (getRed() * FACTOR), 0),
                Math.max((int) (getGreen() * FACTOR), 0),
                Math.max((int) (getBlue() * FACTOR), 0));
    }

    @Override
    public boolean equals(final Object obj) {
        return obj instanceof BaseColor && ((BaseColor) obj).value == this.value;
    }

    @Override
    public int hashCode() {
        return value;
    }

    protected void setValue(final int red, final int green, final int blue, final int alpha) {
        validate(red);
        validate(green);
        validate(blue);
        validate(alpha);
        value = ((alpha & 0xFF) << 24) | ((red & 0xFF) << 16) | ((green & 0xFF) << 8) | ((blue & 0xFF) << 0);
    }


    private static void validate(final int value) {
        if (value < 0 || value > 255)
            throw new IllegalArgumentException(MessageLocalization.getComposedMessage("color.value.outside.range.0.255"));
    }

    /* (non-Javadoc)
     * @see java.lang.Object#toString()
     */
    @Override
    public String toString() {
        return "Color value["+Integer.toString(value, 16)+"]";
    }
}

⏎ com/itextpdf/text/BaseColor.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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