What Is fop.jar? I got it from the fop-2.7-bin.zip.

fop.jar in fop-2.7-bin.zip is the JAR file for FOP 2.7, which is a print formatter driven by XSL formatting objects (XSL-FO). You can obtain fop.jar from the build folder of the fop-2.7-bin.zip file.

Below is the information about the fop.jar (2.2) file:

JAR File Size and Download Location:

JAR name: fop.jar, fop-2.7.jar
Target JDK version: 1.7
File name: fop.jar
File size: 4442817 bytes
Release date: 20-Jan-2022
Download: Apache FOP Website

Java source code files for fop.jar:

⏎ org/apache/fop/render/pdf/AbstractPDFImageHandler.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/* $Id: AbstractPDFImageHandler.java 1135995 2011-06-15 11:04:33Z spepping $ */

package org.apache.fop.render.pdf;

import java.awt.Rectangle;
import java.io.IOException;

import org.apache.xmlgraphics.image.loader.Image;

import org.apache.fop.pdf.PDFImage;
import org.apache.fop.pdf.PDFXObject;
import org.apache.fop.render.ImageHandler;
import org.apache.fop.render.RenderingContext;
import org.apache.fop.render.pdf.PDFLogicalStructureHandler.MarkedContentInfo;

/**
 * A partial implementation of a PDF-specific image handler, containing the code that is
 * common between image flavors.
 */
abstract class AbstractPDFImageHandler implements ImageHandler {

    /** {@inheritDoc} */
    public void handleImage(RenderingContext context, Image image, Rectangle pos)
            throws IOException {
        assert context instanceof PDFRenderingContext;
        PDFRenderingContext pdfContext = (PDFRenderingContext)context;
        PDFContentGenerator generator = pdfContext.getGenerator();
        PDFImage pdfimage = createPDFImage(image, image.getInfo().getOriginalURI());
        PDFXObject xobj = generator.getDocument().addImage(
                generator.getResourceContext(), pdfimage);

        float x = (float)pos.getX() / 1000f;
        float y = (float)pos.getY() / 1000f;
        float w = (float)pos.getWidth() / 1000f;
        float h = (float)pos.getHeight() / 1000f;
        if (context.getUserAgent().isAccessibilityEnabled()) {
            MarkedContentInfo mci = pdfContext.getMarkedContentInfo();
            generator.placeImage(x, y, w, h, xobj, mci.tag, mci.mcid);
        } else {
            generator.placeImage(x, y, w, h, xobj);
        }
    }

    /**
     * Creates a PDF image object out of the given image.
     *
     * @param image an image
     * @param xobjectKey a key for retrieval of the image from the document's XObject collection
     * @return a suitable {@link PDFImage} implementation that can handle the flavour of
     * the given image
     */
    abstract PDFImage createPDFImage(Image image, String xobjectKey);
}

⏎ org/apache/fop/render/pdf/AbstractPDFImageHandler.java

Or download all of them as a single archive file:

File name: fop-2.7-src.zip
File size: 3401312 bytes
Release date: 2022-01-20
Download 

⇒ "fop" Command in fop-2.7-bin.zip

⇐ What Is fop-2.7-bin.zip

⇑ Download and Installing of FOP 2.x

⇑⇑ FAQ for FOP (Formatting Object Processor)