Some test text!

menu
search

Merge, copy, delete and rearrange PDF pages in C# (.NET Core)

Sample C# (.NET Core) code for using PDFTron 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 PDF Editing & Manipulation Library.

Get StartedSamplesDownload

To run this sample, get started with a free trial of PDFTron SDK.

// Generated code. Do not modify!
//
// Copyright (c) 2001-2019 by PDFTron Systems Inc. All Rights Reserved.
//

using System;
using System.IO;
using System.Collections;
using pdftron;
using pdftron.Common;
using pdftron.Filters;
using pdftron.SDF;
using pdftron.PDF;

namespace PDFPageTestCS
{
	/// <summary>
	/// Summary description for Class1.
	/// </summary>
	class Class1
	{
		private static pdftron.PDFNetLoader pdfNetLoader = pdftron.PDFNetLoader.Instance();
		static Class1() {}
		
		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main(string[] args)
		{
			PDFNet.Initialize();

			// Relative path to the folder containing test files.
			string input_path =  "../../TestFiles/";
			string output_path = "../../TestFiles/Output/";
			
			// Sample 1 - Split a PDF document into multiple pages
			try
			{
				Console.WriteLine("_______________________________________________");
				Console.WriteLine("Sample 1 - Split a PDF document into multiple pages...");
				Console.WriteLine("Opening the input pdf...");

				using (PDFDoc in_doc = new PDFDoc(input_path + "newsletter.pdf"))
				{
					in_doc.InitSecurityHandler();

					int page_num = in_doc.GetPageCount();
					for (int i = 1; i <= page_num; ++i) 
					{
						using (PDFDoc new_doc = new PDFDoc()) 
						{
							new_doc.InsertPages(0, in_doc, i, i, PDFDoc.InsertFlag.e_none);
							new_doc.Save(output_path + "newsletter_split_page_" + i + ".pdf", SDFDoc.SaveOptions.e_remove_unused);
							Console.WriteLine("Done. Result saved in newsletter_split_page_" + i + ".pdf");
						}
					}
				}
			}
			catch (Exception e)
			{
				Console.WriteLine("Exception caught:\n{0}", e);
			}

			// Sample 2 - Merge several PDF documents into one
			try
			{
				Console.WriteLine("_______________________________________________");
				Console.WriteLine("Sample 2 - Merge several PDF documents into one...");

				using (PDFDoc new_doc = new PDFDoc()) 
				{
					new_doc.InitSecurityHandler();
					int page_num = 15;
					for (int i = 1; i <= page_num; ++i) 
					{
						Console.WriteLine("Opening newsletter_split_page_" + i + ".pdf");
						using (PDFDoc in_doc = new PDFDoc(output_path + "newsletter_split_page_" + i + ".pdf")) 
						{
							new_doc.InsertPages(i, in_doc, 1, in_doc.GetPageCount(), PDFDoc.InsertFlag.e_none);
						}
					}
					new_doc.Save(output_path + "newsletter_merge_pages.pdf", SDFDoc.SaveOptions.e_remove_unused);
				}
				Console.WriteLine("Done. Result saved in newsletter_merge_pages.pdf");
			}
			catch (Exception e)
			{
				Console.WriteLine("Exception caught:\n{0}", e);
			}


			// Sample 3 - Delete every second page
			try	
			{
				Console.WriteLine("_______________________________________________");
				Console.WriteLine("Sample 3 - Delete every second page...");
				Console.WriteLine("Opening the input pdf...");

				using (PDFDoc in_doc = new PDFDoc(input_path +  "newsletter.pdf"))
				{
					in_doc.InitSecurityHandler();

					int page_num = in_doc.GetPageCount();
					PageIterator itr;
					while (page_num>=1)
					{
						itr = in_doc.GetPageIterator(page_num);
						in_doc.PageRemove(itr);
						page_num -= 2;
					}		

					in_doc.Save(output_path +  "newsletter_page_remove.pdf", 0);
				}
				Console.WriteLine("Done. Result saved in newsletter_page_remove.pdf...");
			}
			catch(Exception e)
			{
				Console.WriteLine("Exception caught:\n{0}", e);
			}

			// Sample 4 - Inserts a page from one document at different
			// locations within another document                       
			try   
			{	 
				Console.WriteLine("_______________________________________________");
				Console.WriteLine("Sample 4 - Insert a page at different locations...");
				Console.WriteLine("Opening the input pdf...");

				using (PDFDoc in1_doc = new PDFDoc(input_path +  "newsletter.pdf"))
				using (PDFDoc in2_doc = new PDFDoc(input_path + "fish.pdf"))
				{
					in1_doc.InitSecurityHandler();
					in2_doc.InitSecurityHandler();

					Page src_page = in2_doc.GetPage(1);
					PageIterator dst_page = in1_doc.GetPageIterator(1);
					int page_num = 1;
					while (dst_page.HasNext()) {
						if (page_num++ % 3 == 0) {
							in1_doc.PageInsert(dst_page, src_page);
						}
						dst_page.Next();
					}

					in1_doc.Save(output_path +  "newsletter_page_insert.pdf", 0);
					Console.WriteLine("Done. Result saved in newsletter_page_insert.pdf...");
				}
			}
			catch(Exception e)
			{
				Console.WriteLine("Exception caught:\n{0}", e);
			}

			// Sample 5 - Replicate pages within a single document
			try	
			{
				Console.WriteLine("_______________________________________________");
				Console.WriteLine("Sample 5 - Replicate pages within a single document...");
				Console.WriteLine("Opening the input pdf...");
				using (PDFDoc doc = new PDFDoc(input_path +  "newsletter.pdf")) 
				{
					doc.InitSecurityHandler();

					// Replicate the cover page three times (copy page #1 and place it before the 
					// seventh page in the document page sequence)
					Page cover = doc.GetPage(1);
                    PageIterator p7 = doc.GetPageIterator(7);
                    doc.PageInsert(p7, cover);
					doc.PageInsert(p7, cover);
					doc.PageInsert(p7, cover);

					// Replicate the cover page two more times by placing it before and after
					// existing pages.
					doc.PagePushFront(cover);
					doc.PagePushBack(cover);

					doc.Save(output_path +  "newsletter_page_clone.pdf", 0);
					Console.WriteLine("Done. Result saved in newsletter_page_clone.pdf...");
				}
			}
			catch(Exception e)
			{
				Console.WriteLine("Exception caught:\n{0}", e);
			}

			// Sample 6 - Use ImportPages() in order to copy multiple pages at once    
			// in order to preserve shared resources between pages (e.g. images, fonts,
			// colorspaces, etc.)
			try	
			{    
				Console.WriteLine("_______________________________________________");
				Console.WriteLine("Sample 6 - Preserving shared resources using ImportPages...");
				Console.WriteLine("Opening the input pdf...");
				using (PDFDoc in_doc = new PDFDoc(input_path +  "newsletter.pdf")) 
				{
					in_doc.InitSecurityHandler();
					using (PDFDoc new_doc = new PDFDoc()) 
					{
						ArrayList copy_pages = new ArrayList(); 
						for (PageIterator itr = in_doc.GetPageIterator(); itr.HasNext(); itr.Next()) {
							copy_pages.Add(itr.Current());
						}

						ArrayList imported_pages = new_doc.ImportPages(copy_pages);
						for (int i=0; i!=imported_pages.Count; ++i) {
							new_doc.PagePushFront((Page)imported_pages[i]); // Order pages in reverse order. 
							// Use PagePushBack() if you would like to preserve the same order.
						}
					
						new_doc.Save(output_path +  "newsletter_import_pages.pdf", 0);
						Console.WriteLine("Done. Result saved in newsletter_import_pages.pdf...");
						Console.WriteLine();
						Console.WriteLine("Note that the output file size is less than half the size"); 
						Console.WriteLine("of the file produced using individual page copy operations");
						Console.WriteLine("between two documents");
					}
				}
			}
			catch(Exception e)
			{
				Console.WriteLine("Exception caught:\n{0}", e);
			}
		}
	}
}
close

Free Trial

Get unlimited trial usage of PDFTron SDK to bring accurate, reliable, and fast document processing capabilities to any application or workflow.

Select a platform to get started with your free trial.

Unlimited usage. No email address required.

PDFTron Receives USD$71 Million Growth Investment Led By Silversmith Capital Partners

Learn More
close