/*
* 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.examples.pdmodel;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.PDDocumentCatalog;
import org.apache.pdfbox.pdmodel.PDDocumentInformation;
import org.apache.pdfbox.pdmodel.common.PDMetadata;
import org.apache.pdfbox.pdmodel.encryption.InvalidPasswordException;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import org.apache.pdfbox.pdmodel.encryption.StandardDecryptionMaterial;
/**
* This is an example on how to get a documents metadata information.
*
* Usage: java org.apache.pdfbox.examples.pdmodel.PrintDocumentMetaData <input-pdf>
*
* @author Ben Litchfield
*
*/
public class PrintDocumentMetaData
{
/**
* This will print the documents data.
*
* @param args The command line arguments.
*
* @throws Exception If there is an error parsing the document.
*/
public static void main( String[] args ) throws Exception
{
if( args.length != 1 )
{
usage();
}
else
{
PDDocument document = null;
try
{
document = PDDocument.load( args[0]);
if( document.isEncrypted() )
{
try
{
StandardDecryptionMaterial sdm = new StandardDecryptionMaterial("");
document.openProtection(sdm);
}
catch( InvalidPasswordException e )
{
System.err.println( "Error: Document is encrypted with a password." );
System.exit( 1 );
}
}
PrintDocumentMetaData meta = new PrintDocumentMetaData();
meta.printMetadata( document );
}
finally
{
if( document != null )
{
document.close();
}
}
}
}
/**
* This will print the usage for this document.
*/
private static void usage()
{
System.err.println( "Usage: java org.apache.pdfbox.examples.pdmodel.PrintDocumentMetaData <input-pdf>" );
}
/**
* This will print the documents data to System.out.
*
* @param document The document to get the metadata from.
*
* @throws IOException If there is an error getting the page count.
*/
public void printMetadata( PDDocument document ) throws IOException
{
PDDocumentInformation info = document.getDocumentInformation();
PDDocumentCatalog cat = document.getDocumentCatalog();
PDMetadata metadata = cat.getMetadata();
System.out.println( "Page Count=" + document.getNumberOfPages() );
System.out.println( "Title=" + info.getTitle() );
System.out.println( "Author=" + info.getAuthor() );
System.out.println( "Subject=" + info.getSubject() );
System.out.println( "Keywords=" + info.getKeywords() );
System.out.println( "Creator=" + info.getCreator() );
System.out.println( "Producer=" + info.getProducer() );
System.out.println( "Creation Date=" + formatDate( info.getCreationDate() ) );
System.out.println( "Modification Date=" + formatDate( info.getModificationDate() ) );
System.out.println( "Trapped=" + info.getTrapped() );
if( metadata != null )
{
System.out.println( "Metadata=" + metadata.getInputStreamAsString() );
}
}
/**
* This will format a date object.
*
* @param date The date to format.
*
* @return A string representation of the date.
*/
private String formatDate( Calendar date )
{
String retval = null;
if( date != null )
{
SimpleDateFormat formatter = new SimpleDateFormat();
retval = formatter.format( date.getTime() );
}
return retval;
}
}