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/fo/properties/CommonRelativePosition.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: CommonRelativePosition.java 1681384 2015-05-23 21:07:13Z adelmelle $ */

package org.apache.fop.fo.properties;

import org.apache.fop.datatypes.Length;
import org.apache.fop.fo.Constants;
import org.apache.fop.fo.PropertyList;
import org.apache.fop.fo.expr.PropertyException;

/**
 * Store all common relative position properties.
 * See Sec 7.12 of the XSL-FO Standard.
 * Public "structure" allows direct member access.
 */
public class CommonRelativePosition {
    // @SuppressFBWarnings("URF_UNREAD_PUBLIC_OR_PROTECTED_FIELD")
    /**
     * The "relative-position" property.
     */
    public int relativePosition;

    /**
     * The "top" property.
     */
    public Length top;

    /**
     * The "right" property.
     */
    public Length right;

    /**
     * The "bottom" property.
     */
    public Length bottom;

    /**
     * The "left" property.
     */
    public Length left;

    /**
     * Create a CommonRelativePosition object.
     * @param pList The PropertyList with propery values.
     * @throws PropertyException if a property exception occurs
     */
    public CommonRelativePosition(PropertyList pList) throws PropertyException {
        relativePosition = pList.get(Constants.PR_RELATIVE_POSITION).getEnum();
        top = pList.get(Constants.PR_TOP).getLength();
        bottom = pList.get(Constants.PR_BOTTOM).getLength();
        left = pList.get(Constants.PR_LEFT).getLength();
        right = pList.get(Constants.PR_RIGHT).getLength();
    }

}

⏎ org/apache/fop/fo/properties/CommonRelativePosition.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)