Section:

PDF Page Manipulation - Merge, Copy, Delete, Rearrange - Java Sample Code

Sample code for using Apryse SDK to copy pages from one document to another, delete and rearrange pages, and use ImportPages() method for very efficient copy and merge operations. Sample code provided in Python, C++, C#, Java, Node.js (JavaScript), PHP, Ruby and VB.

Learn more about our Server SDK and PDF Editing & Manipulation Library.

1//---------------------------------------------------------------------------------------
2// Copyright (c) 2001-2024 by Apryse Software Inc. All Rights Reserved.
3// Consult legal.txt regarding legal and license information.
4//---------------------------------------------------------------------------------------
5
6import com.pdftron.pdf.*;
7import com.pdftron.sdf.*;
8import com.pdftron.common.PDFNetException;
9
10public class PDFPageTest {
11
12    public static void main(String[] args) {
13        PDFNet.initialize(PDFTronLicense.Key());
14
15        // Relative path to the folder containing test files.
16        String input_path = "../../TestFiles/";
17        String output_path = "../../TestFiles/Output/";
18
19        // Sample 1 - Split a PDF document into multiple pages
20        System.out.println("_______________________________________________");
21        System.out.println("Sample 1 - Split a PDF document into multiple pages...");
22        System.out.println("Opening the input pdf...");
23        try (PDFDoc in_doc = new PDFDoc(input_path + "newsletter.pdf")) {
24            in_doc.initSecurityHandler();
25
26            int page_num = in_doc.getPageCount();
27            for (int i = 1; i <= page_num; ++i) {
28                try (PDFDoc new_doc = new PDFDoc()) {
29                    new_doc.insertPages(0, in_doc, i, i, PDFDoc.InsertBookmarkMode.NONE, null);
30                    String fname = "newsletter_split_page_" + i + ".pdf";
31                    new_doc.save(output_path + fname, SDFDoc.SaveMode.REMOVE_UNUSED, null);
32                    // output PDF new_doc
33                    System.out.println("Done. Result saved in newsletter_split_page_" + i + ".pdf");
34                }
35            }
36        } catch (Exception e2) {
37            System.out.println(e2);
38        }
39
40        // Sample 2 - Merge several PDF documents into one
41        System.out.println("_______________________________________________");
42        System.out.println("Sample 2 - Merge several PDF documents into one...");
43        try (PDFDoc new_doc = new PDFDoc()) {
44            new_doc.initSecurityHandler();
45
46            int page_num = 15;
47            for (int i = 1; i <= page_num; ++i) {
48                System.out.println("Opening newsletter_split_page_" + i + ".pdf");
49                String fname = "newsletter_split_page_" + i + ".pdf";
50                try (PDFDoc in_doc = new PDFDoc(output_path + fname)) {
51                    new_doc.insertPages(i, in_doc, 1, in_doc.getPageCount(), PDFDoc.InsertBookmarkMode.NONE, null);
52                }
53            }
54            new_doc.save(output_path + "newsletter_merge_pages.pdf", SDFDoc.SaveMode.REMOVE_UNUSED, null);
55            System.out.println("Done. Result saved in newsletter_merge_pages.pdf");
56        } catch (Exception e2) {
57            System.out.println(e2);
58        }
59
60        // Sample 3 - Delete every second page
61        System.out.println("_______________________________________________");
62        System.out.println("Sample 3 - Delete every second page...");
63        System.out.println("Opening the input pdf...");
64        try (PDFDoc in_doc = new PDFDoc(input_path + "newsletter.pdf")) {
65            in_doc.initSecurityHandler();
66
67            int page_num = in_doc.getPageCount();
68            while (page_num >= 1) {
69                PageIterator itr = in_doc.getPageIterator(page_num);
70                in_doc.pageRemove(itr);
71                page_num -= 2;
72            }
73
74            in_doc.save(output_path + "newsletter_page_remove.pdf", SDFDoc.SaveMode.NO_FLAGS, null);
75            System.out.println("Done. Result saved in newsletter_page_remove.pdf...");
76
77        } catch (Exception e2) {
78            System.out.println(e2);
79        }
80
81        // Sample 4 - Inserts a page from one document at different
82        // locations within another document
83        System.out.println("_______________________________________________");
84        System.out.println("Sample 4 - Insert a page at different locations...");
85        System.out.println("Opening the input pdf...");
86        try (PDFDoc in1_doc = new PDFDoc((input_path + "newsletter.pdf"))) {
87            in1_doc.initSecurityHandler();
88            try (PDFDoc in2_doc = new PDFDoc((input_path + "fish.pdf"))) {
89                in2_doc.initSecurityHandler();
90
91                PageIterator src_page_itr = in2_doc.getPageIterator();
92                Page src_page = src_page_itr.next();
93                PageIterator dst_page_itr = in1_doc.getPageIterator();
94                int page_num = 1;
95                while (dst_page_itr.hasNext()) {
96                  if (page_num++ % 3 == 0) {
97                    in1_doc.pageInsert(dst_page_itr, src_page);
98                }
99                dst_page_itr.next();
100               }
101
102               in1_doc.save(output_path + "newsletter_page_insert.pdf", SDFDoc.SaveMode.NO_FLAGS, null);
103               // output PDF in1_doc
104               System.out.println("Done. Result saved in newsletter_page_insert.pdf...");
105            }
106        } catch (Exception e) {
107              System.out.println(e);
108        }
109
110        // Sample 5 - Replicate pages within a single document
111        System.out.println("_______________________________________________");
112        System.out.println("Sample 5 - Replicate pages within a single document...");
113        System.out.println("Opening the input pdf...");
114        try (PDFDoc doc = new PDFDoc((input_path + "newsletter.pdf"))) {
115            doc.initSecurityHandler();
116
117            // Replicate the cover page three times (copy page #1 and place it before the
118            // seventh page in the document page sequence)
119            Page cover = doc.getPage(1);
120            PageIterator p7 = doc.getPageIterator(7);
121            doc.pageInsert(p7, cover);
122            doc.pageInsert(p7, cover);
123            doc.pageInsert(p7, cover);
124
125            // Replicate the cover page two more times by placing it before and after
126            // existing pages.
127            doc.pagePushFront(cover);
128            doc.pagePushBack(cover);
129
130            doc.save(output_path + "newsletter_page_clone.pdf", SDFDoc.SaveMode.NO_FLAGS, null);
131            System.out.println("Done. Result saved in newsletter_page_clone.pdf...");
132            
133        } catch (Exception e2) {
134            System.out.println(e2);
135        }
136
137        // Sample 6 - Use ImportPages() in order to copy multiple pages at once
138        // in order to preserve shared resources between pages (e.g. images, fonts,
139        // colorspaces, etc.)
140        System.out.println("_______________________________________________");
141        System.out.println("Sample 6 - Preserving shared resources using ImportPages...");
142        System.out.println("Opening the input pdf...");
143        try (PDFDoc in_doc = new PDFDoc((input_path + "newsletter.pdf"))) {
144            in_doc.initSecurityHandler();
145
146            try (PDFDoc new_doc = new PDFDoc()) {
147
148                Page[] copy_pages = new Page[in_doc.getPageCount()];
149                int j = 0;
150                for (PageIterator itr = in_doc.getPageIterator(); itr.hasNext(); j++) {
151                    copy_pages[j] = itr.next();
152                }
153
154                Page[] imported_pages = new_doc.importPages(copy_pages);
155                for (int i = 0; i < imported_pages.length; ++i) {
156                    new_doc.pagePushFront(imported_pages[i]); // Order pages in reverse order.
157                    // Use pushBackPage() if you would like to preserve the same order.
158                }
159
160                new_doc.save(output_path + "newsletter_import_pages.pdf", SDFDoc.SaveMode.NO_FLAGS, null);
161
162                System.out.println("Done. Result saved in newsletter_import_pages.pdf...");
163                System.out.println();
164                System.out.println("Note that the output file size is less than half the size");
165                System.out.println("of the file produced using individual page copy operations");
166                System.out.println("between two documents");
167            }
168        } catch (Exception e1) {
169            System.out.println(e1);
170        }
171
172        PDFNet.terminate();
173    }
174}

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