kernel.jar is a component in iText Java library to provide low-level functionalities. iText Java library allows you to generate and manage PDF documents.

The Source Code files are provided together with the JAR file in the binary packge like iText7-Core-7.1.4.zip. You can download it at iText 7 Core Download site.

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

The source code of kernel-7.1.4.jar is provided below:

⏎ com/itextpdf/kernel/pdf/annot/PdfRedactAnnotation.java

/*

    This file is part of the iText (R) project.
    Copyright (c) 1998-2018 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.kernel.pdf.annot;

import com.itextpdf.kernel.colors.Color;
import com.itextpdf.kernel.colors.DeviceCmyk;
import com.itextpdf.kernel.colors.DeviceGray;
import com.itextpdf.kernel.colors.DeviceRgb;
import com.itextpdf.kernel.geom.Rectangle;
import com.itextpdf.kernel.pdf.PdfArray;
import com.itextpdf.kernel.pdf.PdfBoolean;
import com.itextpdf.kernel.pdf.PdfDictionary;
import com.itextpdf.kernel.pdf.PdfName;
import com.itextpdf.kernel.pdf.PdfNumber;
import com.itextpdf.kernel.pdf.PdfObject;
import com.itextpdf.kernel.pdf.PdfStream;
import com.itextpdf.kernel.pdf.PdfString;
import com.itextpdf.kernel.pdf.annot.da.AnnotationDefaultAppearance;

public class PdfRedactAnnotation extends PdfMarkupAnnotation {

	private static final long serialVersionUID = 8488431772407790511L;

	public PdfRedactAnnotation(Rectangle rect) {
        super(rect);
    }

    /**
     * see {@link PdfAnnotation#makeAnnotation(PdfObject)}
     */
    protected PdfRedactAnnotation(PdfDictionary pdfObject) {
        super(pdfObject);
    }

    @Override
    public PdfName getSubtype() {
        return PdfName.Redact;
    }

    /**
     * The default appearance string that shall be used in formatting the text. See ISO-32001 12.7.3.3, “Variable Text”.
     * @return a {@link PdfString} that specifies the default appearance, or null if default appereance is not specified.
     */
    public PdfString getDefaultAppearance() {
        return getPdfObject().getAsString(PdfName.DA);
    }

    /**
     * The default appearance string that shall be used in formatting the text. See ISO-32001 12.7.3.3, “Variable Text”.
     * @param appearanceString a {@link PdfString} that specifies the default appearance.
     * @return this {@link PdfMarkupAnnotation} instance.+
     */
    public PdfRedactAnnotation setDefaultAppearance(PdfString appearanceString) {
        return (PdfRedactAnnotation) put(PdfName.DA, appearanceString);
    }

    public PdfRedactAnnotation setDefaultAppearance(AnnotationDefaultAppearance da) {
        return setDefaultAppearance(da.toPdfString());
    }

    public PdfRedactAnnotation setOverlayText(PdfString text){
        return (PdfRedactAnnotation) put(PdfName.OverlayText, text);
    }

    public PdfString getOverlayText() {
        return getPdfObject().getAsString(PdfName.OverlayText);
    }

    public PdfRedactAnnotation setRedactRolloverAppearance(PdfStream stream) {
        return (PdfRedactAnnotation) put(PdfName.RO, stream);
    }

    public PdfStream getRedactRolloverAppearance() {
        return getPdfObject().getAsStream(PdfName.RO);
    }

    public PdfRedactAnnotation setRepeat(PdfBoolean repeat) {
        return (PdfRedactAnnotation) put(PdfName.Repeat, repeat);
    }

    public PdfBoolean getRepeat() {
        return getPdfObject().getAsBoolean(PdfName.Repeat);
    }

    /**
     * An array of 8 × n numbers specifying the coordinates of n quadrilaterals in default user space.
     * Quadrilaterals are used to define the content region that is intended to be removed for a redaction annotation.
     *
     * @return an {@link PdfArray} of 8 × n numbers specifying the coordinates of n quadrilaterals.
     */
    public PdfArray getQuadPoints() {
        return getPdfObject().getAsArray(PdfName.QuadPoints);
    }

    /**
     * Sets n quadrilaterals in default user space by passing an {@link PdfArray} of 8 × n numbers.
     * Quadrilaterals are used to define the content region that is intended to be removed for a redaction annotation.
     *
     * @param quadPoints an {@link PdfArray} of 8 × n numbers specifying the coordinates of n quadrilaterals.
     * @return this {@link PdfRedactAnnotation} instance.
     */
    public PdfRedactAnnotation setQuadPoints(PdfArray quadPoints) {
        return (PdfRedactAnnotation) put(PdfName.QuadPoints, quadPoints);
    }

    /**
     * The interior color which is used to fill the redacted region after the affected content has been removed.
     *
     * @return {@link Color} of either {@link DeviceGray}, {@link DeviceRgb} or {@link DeviceCmyk} type which defines
     * interior color of the annotation, or null if interior color is not specified.
     */
    public Color getInteriorColor() {
        return InteriorColorUtil.parseInteriorColor(getPdfObject().getAsArray(PdfName.IC));
    }

    /**
     * An array of numbers in the range 0.0 to 1.0 specifying the interior color which
     * is used to fill the redacted region after the affected content has been removed.
     *
     * @param interiorColor a {@link PdfArray} of numbers in the range 0.0 to 1.0. The number of array elements determines
     *                      the colour space in which the colour is defined: 0 - No colour, transparent; 1 - DeviceGray,
     *                      3 - DeviceRGB, 4 - DeviceCMYK. For the {@link PdfRedactAnnotation} number of elements shall be
     *                      equal to 3 (which defines DeviceRGB colour space).
     * @return this {@link PdfRedactAnnotation} instance.
     */
    public PdfRedactAnnotation setInteriorColor(PdfArray interiorColor) {
        return (PdfRedactAnnotation) put(PdfName.IC, interiorColor);
    }

    /**
     * An array of numbers in the range 0.0 to 1.0 specifying the interior color which
     * is used to fill the redacted region after the affected content has been removed.
     *
     * @param interiorColor an array of floats in the range 0.0 to 1.0.
     * @return this {@link PdfRedactAnnotation} instance.
     */
    public PdfRedactAnnotation setInteriorColor(float[] interiorColor) {
        return setInteriorColor(new PdfArray(interiorColor));
    }

    /**
     * A code specifying the form of quadding (justification) that is used in displaying the annotation's text:
     * 0 - Left-justified, 1 - Centered, 2 - Right-justified. Default value: 0 (left-justified).
     * @return a code specifying the form of quadding (justification), returns the default value if not explicitly specified.
     */
    public int getJustification() {
        PdfNumber q = getPdfObject().getAsNumber(PdfName.Q);
        return q == null ? 0 : q.intValue();
    }

    /**
     * A code specifying the form of quadding (justification) that is used in displaying the annotation's text:
     * 0 - Left-justified, 1 - Centered, 2 - Right-justified. Default value: 0 (left-justified).
     * @param justification a code specifying the form of quadding (justification).
     * @return this {@link PdfRedactAnnotation} instance.
     */
    public PdfRedactAnnotation setJustification(int justification) {
        return (PdfRedactAnnotation) put(PdfName.Q, new PdfNumber(justification));
    }
}

⏎ com/itextpdf/kernel/pdf/annot/PdfRedactAnnotation.java

 

⇒ iText io.jar Source Code

⇐ Download and Install iText7-Core-7.1.4.zip

⇑ Download and Install iText Java Library

⇑⇑ iText for PDF Generation