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Java > Open Source Codes > Concatenate


1 import org.faceless.pdf2.*;
2 import java.io.*;
3 import java.util.*;
4
5 // One of the most common requests we get is "How do I join two
6 // documents together". This example shows just that, in the
7 // simplest way possible. The "getPages()" method here is only
8 // being used to add pages to the end, but as it returns a
9 // java.util.List it's easy to manipulate the list as necessary.
10 //
11 // $Id: Concatenate.java,v 1.4 2003/11/03 10:56:14 mike Exp $
12 //
13 public class Concatenate
14 {
15     public static void main(String JavaDoc[] args) throws IOException
16     {
17     if (args.length<2) {
18         System.out.println("Usage: java Concatenate <file1> <file2> ... <filen>");
19         System.out.println(" Creates file \"Concatenate.pdf\"");
20         System.exit(0);
21     }
22
23
24     PDF pdf = new PDF(new PDFReader(new FileInputStream(args[0])));
25
26     for (int i=1;i<args.length;i++)
27     {
28         // Load the PDF to be concatenated
29 //
30 FileInputStream in = new FileInputStream(args[i]);
31         PDF newpdf = new PDF(new PDFReader(in));
32         in.close();
33
34         // Move all the pages from "newpdf" to "pdf"
35 // Move all the form fields from "newpdf" to "pdf"
36 //
37 // In version 1, the form fields were moved with the pages.
38 // Not so in version 2! If you want them you have to move
39 // them yourself.
40 //
41 pdf.getPages().addAll(newpdf.getPages());
42         pdf.getForm().getElements().putAll(newpdf.getForm().getElements());
43     }
44
45     pdf.render(new FileOutputStream("Concatenate.pdf"));
46     }
47 }
48
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