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


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
35 import java.io.IOException JavaDoc;
36
37 /**
38  * This is an example on how to remove pages from a PDF document.
39  *
40  * @author <a HREF="mailto:ben@benlitchfield.com">Ben Litchfield</a>
41  * @version $Revision: 1.5 $
42  */

43 public class RemoveFirstPage
44 {
45     private RemoveFirstPage()
46     {
47         //utility class, should not be instantiated.
48
}
49     
50     /**
51      * This will print the documents data.
52      *
53      * @param args The command line arguments.
54      *
55      * @throws Exception If there is an error parsing the document.
56      */

57     public static void main( String JavaDoc[] args ) throws Exception JavaDoc
58     {
59         if( args.length != 2 )
60         {
61             usage();
62         }
63         else
64         {
65             PDDocument document = null;
66             try
67             {
68                 document = PDDocument.load( args[0] );
69                 if( document.isEncrypted() )
70                 {
71                     throw new IOException JavaDoc( "Encrypted documents are not supported for this example" );
72                 }
73                 if( document.getNumberOfPages() <= 1 )
74                 {
75                     throw new IOException JavaDoc( "Error: A PDF document must have at least one page, " +
76                                            "cannot remove the last page!");
77                 }
78                 document.removePage( 0 );
79                 document.save( args[1] );
80             }
81             finally
82             {
83                 if( document != null )
84                 {
85                     document.close();
86                 }
87             }
88         }
89     }
90
91     /**
92      * This will print the usage for this document.
93      */

94     private static void usage()
95     {
96         System.err.println( "Usage: java org.pdfbox.examples.pdmodel.RemoveFirstPage <input-pdf> <output-pdf>" );
97     }
98 }
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