Section:

PDFPage

Sample C# 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. 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//
4
5using System;
6using System.IO;
7using System.Collections;
8using pdftron;
9using pdftron.Common;
10using pdftron.Filters;
11using pdftron.SDF;
12using pdftron.PDF;
13
14namespace PDFPageTestCS
15{
16	/// <summary>
17	/// Summary description for Class1.
18	/// </summary>
19	class Class1
20	{
21		private static pdftron.PDFNetLoader pdfNetLoader = pdftron.PDFNetLoader.Instance();
22		static Class1() {}
23		
24		/// <summary>
25		/// The main entry point for the application.
26		/// </summary>
27		[STAThread]
28		static void Main(string[] args)
29		{
30			PDFNet.Initialize(PDFTronLicense.Key);
31
32			// Relative path to the folder containing test files.
33			string input_path =  "../../../../TestFiles/";
34			string output_path = "../../../../TestFiles/Output/";
35			
36			// Sample 1 - Split a PDF document into multiple pages
37			try
38			{
39				Console.WriteLine("_______________________________________________");
40				Console.WriteLine("Sample 1 - Split a PDF document into multiple pages...");
41				Console.WriteLine("Opening the input pdf...");
42
43				using (PDFDoc in_doc = new PDFDoc(input_path + "newsletter.pdf"))
44				{
45					in_doc.InitSecurityHandler();
46
47					int page_num = in_doc.GetPageCount();
48					for (int i = 1; i <= page_num; ++i) 
49					{
50						using (PDFDoc new_doc = new PDFDoc()) 
51						{
52							new_doc.InsertPages(0, in_doc, i, i, PDFDoc.InsertFlag.e_none);
53							new_doc.Save(output_path + "newsletter_split_page_" + i + ".pdf", SDFDoc.SaveOptions.e_remove_unused);
54							Console.WriteLine("Done. Result saved in newsletter_split_page_" + i + ".pdf");
55						}
56					}
57				}
58			}
59			catch (Exception e)
60			{
61				Console.WriteLine("Exception caught:\n{0}", e);
62			}
63
64			// Sample 2 - Merge several PDF documents into one
65			try
66			{
67				Console.WriteLine("_______________________________________________");
68				Console.WriteLine("Sample 2 - Merge several PDF documents into one...");
69
70				using (PDFDoc new_doc = new PDFDoc()) 
71				{
72					new_doc.InitSecurityHandler();
73					int page_num = 15;
74					for (int i = 1; i <= page_num; ++i) 
75					{
76						Console.WriteLine("Opening newsletter_split_page_" + i + ".pdf");
77						using (PDFDoc in_doc = new PDFDoc(output_path + "newsletter_split_page_" + i + ".pdf")) 
78						{
79							new_doc.InsertPages(i, in_doc, 1, in_doc.GetPageCount(), PDFDoc.InsertFlag.e_none);
80						}
81					}
82					new_doc.Save(output_path + "newsletter_merge_pages.pdf", SDFDoc.SaveOptions.e_remove_unused);
83				}
84				Console.WriteLine("Done. Result saved in newsletter_merge_pages.pdf");
85			}
86			catch (Exception e)
87			{
88				Console.WriteLine("Exception caught:\n{0}", e);
89			}
90
91
92			// Sample 3 - Delete every second page
93			try	
94			{
95				Console.WriteLine("_______________________________________________");
96				Console.WriteLine("Sample 3 - Delete every second page...");
97				Console.WriteLine("Opening the input pdf...");
98
99				using (PDFDoc in_doc = new PDFDoc(input_path +  "newsletter.pdf"))
100				{
101					in_doc.InitSecurityHandler();
102
103					int page_num = in_doc.GetPageCount();
104					PageIterator itr;
105					while (page_num>=1)
106					{
107						itr = in_doc.GetPageIterator(page_num);
108						in_doc.PageRemove(itr);
109						page_num -= 2;
110					}		
111
112					in_doc.Save(output_path +  "newsletter_page_remove.pdf", 0);
113				}
114				Console.WriteLine("Done. Result saved in newsletter_page_remove.pdf...");
115			}
116			catch(Exception e)
117			{
118				Console.WriteLine("Exception caught:\n{0}", e);
119			}
120
121			// Sample 4 - Inserts a page from one document at different
122			// locations within another document                       
123			try   
124			{	 
125				Console.WriteLine("_______________________________________________");
126				Console.WriteLine("Sample 4 - Insert a page at different locations...");
127				Console.WriteLine("Opening the input pdf...");
128
129				using (PDFDoc in1_doc = new PDFDoc(input_path +  "newsletter.pdf"))
130				using (PDFDoc in2_doc = new PDFDoc(input_path + "fish.pdf"))
131				{
132					in1_doc.InitSecurityHandler();
133					in2_doc.InitSecurityHandler();
134
135					Page src_page = in2_doc.GetPage(1);
136					PageIterator dst_page = in1_doc.GetPageIterator(1);
137					int page_num = 1;
138					while (dst_page.HasNext()) {
139						if (page_num++ % 3 == 0) {
140							in1_doc.PageInsert(dst_page, src_page);
141						}
142						dst_page.Next();
143					}
144
145					in1_doc.Save(output_path +  "newsletter_page_insert.pdf", 0);
146					Console.WriteLine("Done. Result saved in newsletter_page_insert.pdf...");
147				}
148			}
149			catch(Exception e)
150			{
151				Console.WriteLine("Exception caught:\n{0}", e);
152			}
153
154			// Sample 5 - Replicate pages within a single document
155			try	
156			{
157				Console.WriteLine("_______________________________________________");
158				Console.WriteLine("Sample 5 - Replicate pages within a single document...");
159				Console.WriteLine("Opening the input pdf...");
160				using (PDFDoc doc = new PDFDoc(input_path +  "newsletter.pdf")) 
161				{
162					doc.InitSecurityHandler();
163
164					// Replicate the cover page three times (copy page #1 and place it before the 
165					// seventh page in the document page sequence)
166					Page cover = doc.GetPage(1);
167					PageIterator p7 = doc.GetPageIterator(7);
168					doc.PageInsert(p7, cover);
169					doc.PageInsert(p7, cover);
170					doc.PageInsert(p7, cover);
171
172					// Replicate the cover page two more times by placing it before and after
173					// existing pages.
174					doc.PagePushFront(cover);
175					doc.PagePushBack(cover);
176
177					doc.Save(output_path +  "newsletter_page_clone.pdf", 0);
178					Console.WriteLine("Done. Result saved in newsletter_page_clone.pdf...");
179				}
180			}
181			catch(Exception e)
182			{
183				Console.WriteLine("Exception caught:\n{0}", e);
184			}
185
186			// Sample 6 - Use ImportPages() in order to copy multiple pages at once    
187			// in order to preserve shared resources between pages (e.g. images, fonts,
188			// colorspaces, etc.)
189			try	
190			{    
191				Console.WriteLine("_______________________________________________");
192				Console.WriteLine("Sample 6 - Preserving shared resources using ImportPages...");
193				Console.WriteLine("Opening the input pdf...");
194				using (PDFDoc in_doc = new PDFDoc(input_path +  "newsletter.pdf")) 
195				{
196					in_doc.InitSecurityHandler();
197					using (PDFDoc new_doc = new PDFDoc()) 
198					{
199						ArrayList copy_pages = new ArrayList(); 
200						for (PageIterator itr = in_doc.GetPageIterator(); itr.HasNext(); itr.Next()) {
201							copy_pages.Add(itr.Current());
202						}
203
204						ArrayList imported_pages = new_doc.ImportPages(copy_pages);
205						for (int i=0; i!=imported_pages.Count; ++i) {
206							new_doc.PagePushFront((Page)imported_pages[i]); // Order pages in reverse order. 
207							// Use PagePushBack() if you would like to preserve the same order.
208						}
209					
210						new_doc.Save(output_path +  "newsletter_import_pages.pdf", 0);
211						Console.WriteLine("Done. Result saved in newsletter_import_pages.pdf...");
212						Console.WriteLine();
213						Console.WriteLine("Note that the output file size is less than half the size"); 
214						Console.WriteLine("of the file produced using individual page copy operations");
215						Console.WriteLine("between two documents");
216					}
217				}
218			}
219			catch(Exception e)
220			{
221				Console.WriteLine("Exception caught:\n{0}", e);
222			}
223			PDFNet.Terminate();
224		}
225	}
226}

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