org.apache.pdfbox.pdmodel.encryption.StandardProtectionPolicy Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of pdfbox Show documentation
The Apache PDFBox library is an open source Java tool for working with PDF documents.
There is a newer version: 3.0.2
/*
 * 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.
 */
package org.apache.pdfbox.pdmodel.encryption;

/**
 * The protection policy to add to a document for password-based protection.
 *
 * The following example shows how to protect a PDF document with password.
 * In this example, the document will be protected so that someone opening
 * the document with the user password user_pwd will not be
 * able to modify the document.
 *
 *  * AccessPermission ap = new AccessPermission();
 * ap.setCanModify(false);
 * StandardProtectionPolicy policy = new StandardProtectionPolicy(owner_pwd, user_pwd, ap);
 * doc.protect(policy);
 * 
 *
 * @author Benoit Guillon
 */
public final class StandardProtectionPolicy extends ProtectionPolicy
{
    private AccessPermission permissions;
    private String ownerPassword = "";
    private String userPassword = "";
    private boolean preferAES = false;

    /**
     * Creates an new instance of the standard protection policy
     * in order to protect a PDF document with passwords.
     *
     * @param ownerPassword The owner's password.
     * @param userPassword The users's password.
     * @param permissions The access permissions given to the user.
     */
    public StandardProtectionPolicy(String ownerPassword, String userPassword,
                                    AccessPermission permissions)
    {
        this.ownerPassword = ownerPassword;
        this.userPassword = userPassword;
        this.permissions = permissions;
    }

    /**
     * Returns the access permissions
     * @return the access permissions
     */
    public AccessPermission getPermissions()
    {
        return permissions;
    }

    /**
     * Sets the access permissions
     * @param permissions the new access permissions
     */
    public void setPermissions(AccessPermission permissions)
    {
        this.permissions = permissions;
    }

    /**
     * Returns the owner password.
     * @return the owner password
     */
    public String getOwnerPassword()
    {
        return ownerPassword;
    }

    /**
     * Sets the owner password
     * @param ownerPassword the new owner password
     */
    public void setOwnerPassword(String ownerPassword)
    {
        this.ownerPassword = ownerPassword;
    }

    /**
     * Returns the user password.
     * @return the user password
     */
    public String getUserPassword()
    {
        return userPassword;
    }

    /**
     * Sets the user password.
     * @param userPassword the new user password
     */
    public void setUserPassword(String userPassword)
    {
        this.userPassword = userPassword;
    }

    /**
     * Tell whether AES encryption is preferred when several encryption methods are available for
     * the chosen key length. The default is false. This setting is only relevant if the key length
     * is 128 bits.
     *
     * @return
     */
    public boolean isPreferAES()
    {
        return this.preferAES;
    }

    /**
     * Set whether AES encryption is preferred when several encryption methods are available for the
     * chosen key length. The default is false. This setting is only relevant if the key length is
     * 128 bits.
     *
     * @param preferAES
     */
    public void setPreferAES(boolean preferAES)
    {
        this.preferAES = preferAES;
    }
}