// // This code is part of Document Solutions for PDF demos. // Copyright (c) MESCIUS inc. All rights reserved. // using System; using System.IO; using System.Drawing; using GrapeCity.Documents.Pdf; using GrapeCity.Documents.Pdf.Annotations; namespace DsPdfWeb.Demos { // This sample shows how to merge two existing PDFs into a single document. // The method GcPdfDocument.MergeWithDocument() provides this feature, // and allows inserting all or some pages from another PDF into the current // document. The simplest form of this method is demonstrated in this sample, // appending a whole PDF to the current document. public class MergePDFs { public int CreatePDF(Stream stream) { using var fs0 = File.OpenRead(Path.Combine("Resources", "PDFs", "The-Rich-History-of-JavaScript.pdf")); using var fs1 = File.OpenRead(Path.Combine("Resources", "PDFs", "CompleteJavaScriptBook.pdf")); var doc = new GcPdfDocument(); doc.Load(fs0); // Save page count for the navigation link added below: var pgNo = doc.Pages.Count; var doc1 = new GcPdfDocument(); doc1.Load(fs1); doc.MergeWithDocument(doc1, new MergeDocumentOptions()); // Insert a note at the beginning of the document: var page = doc.Pages.Insert(0); var rc = Common.Util.AddNote( "GcPdfDocument.MergeWithDocument() method allows adding to the current document all or some pages " + "from another document.\n" + "In this sample we load one PDF, append another whole PDF to it, and save the result.\n" + "Click this note to jump directly to the first page of the 2nd document.", page); // Link the note to the first page of the second document: page.Annotations.Add(new LinkAnnotation(rc, new DestinationFit(pgNo + 1))); // Done (target document must be saved BEFORE the source is disposed): doc.Save(stream); return doc.Pages.Count; } } }