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Java > Open Source Codes > org > pdfbox > examples > pdmodel > GoToSecondBookmarkOnOpen


1 /**
2  * Copyright (c) 2005, www.pdfbox.org
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions are met:
7  *
8  * 1. Redistributions of source code must retain the above copyright notice,
9  * this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright notice,
11  * this list of conditions and the following disclaimer in the documentation
12  * and/or other materials provided with the distribution.
13  * 3. Neither the name of pdfbox; nor the names of its
14  * contributors may be used to endorse or promote products derived from this
15  * software without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20  * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
24  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
26  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  *
28  * http://www.pdfbox.org
29  *
30  */
31 package org.pdfbox.examples.pdmodel;
32
33 import org.pdfbox.pdmodel.PDDocument;
34 import org.pdfbox.pdmodel.interactive.action.type.PDActionGoTo;
35 import org.pdfbox.pdmodel.interactive.documentnavigation.destination.PDDestination;
36 import org.pdfbox.pdmodel.interactive.documentnavigation.outline.PDDocumentOutline;
37 import org.pdfbox.pdmodel.interactive.documentnavigation.outline.PDOutlineItem;
38
39 import java.io.IOException JavaDoc;
40 import java.util.List JavaDoc;
41
42 /**
43  * This is an example on how to an action to go to the second page when the PDF is opened.
44  *
45  * Usage: java org.pdfbox.examples.pdmodel.GoToSecondPageOnOpen <input-pdf> <output-pdf>
46  *
47  * @author <a HREF="mailto:ben@benlitchfield.com">Ben Litchfield</a>
48  * @version $Revision: 1.2 $
49  */
50 public class GoToSecondBookmarkOnOpen
51 {
52     private GoToSecondBookmarkOnOpen()
53     {
54         //utility class
55 }
56     
57     /**
58      * This will print the documents data.
59      *
60      * @param args The command line arguments.
61      *
62      * @throws Exception If there is an error parsing the document.
63      */
64     public static void main( String JavaDoc[] args ) throws Exception JavaDoc
65     {
66         if( args.length != 2 )
67         {
68             usage();
69         }
70         else
71         {
72             PDDocument document = null;
73             try
74             {
75                 document = PDDocument.load( args[0] );
76                 if( document.isEncrypted() )
77                 {
78                     System.err.println( "Error: Cannot add bookmark destination to encrypted documents." );
79                     System.exit( 1 );
80                 }
81                 
82                 List JavaDoc pages = document.getDocumentCatalog().getAllPages();
83                 if( pages.size() < 2 )
84                 {
85                     throw new IOException JavaDoc( "Error: The PDF must have at least 2 pages.");
86                 }
87                 PDDocumentOutline bookmarks = document.getDocumentCatalog().getDocumentOutline();
88                 if( bookmarks == null )
89                 {
90                     throw new IOException JavaDoc( "Error: The PDF does not contain any bookmarks" );
91                 }
92                 PDOutlineItem item = bookmarks.getFirstChild().getNextSibling();
93                 PDDestination dest = item.getDestination();
94                 PDActionGoTo action = new PDActionGoTo();
95                 action.setDestination(dest);
96                 document.getDocumentCatalog().setOpenAction(action);
97                 
98                 document.save( args[1] );
99             }
100             finally
101             {
102                 if( document != null )
103                 {
104                     document.close();
105                 }
106             }
107         }
108     }
109
110     /**
111      * This will print the usage for this document.
112      */
113     private static void usage()
114     {
115         System.err.println( "Usage: java org.pdfbox.examples.pdmodel.CreateBookmarks <input-pdf> <output-pdf>" );
116     }
117 }
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