//// This code is part of Document Solutions for PDF .NET demos.// Copyright (c) MESCIUS inc. All rights reserved.//using System;using System.IO;using GrapeCity.Documents.Pdf;
namespace DsPdfWeb.Demos{    // This example shows how to find and replace all occurrences of a text string in a PDF.    public class ReplaceText    {        public int CreatePDF(Stream stream)        {            var doc = new GcPdfDocument();            using var fs = File.OpenRead(Path.Combine("Resources", "PDFs", "LeaseAgreementDemo.pdf"));            doc.Load(fs);
            // Replace:            // "Jane Donahue" -> "John Doe"            // "(123)098-7654" -> "(007)123-4567"            // "janed@example.com" -> "johnd@example.com"            doc.ReplaceText(new FindTextParams("Jane Donahue", false, true), "John Doe");            doc.ReplaceText(new FindTextParams("(123)098-7654", false, true), "(007)123-4567");            doc.ReplaceText(new FindTextParams("janed@example.com", false, true), "johnd@example.com");            // "13-Dec-20 22:16:00" -> date now            // "13-Dec-22 22:16:00" -> date now + 2 years            var termStart = Common.Util.TimeNow();            var termEnd = Common.Util.TimeNow() + TimeSpan.FromDays(365 * 2);            doc.ReplaceText(new FindTextParams("13-Dec-20 22:16:00", false, true), termStart.ToString("yyyy-MM-dd") + " " + termStart.ToString("HH:mm"));            doc.ReplaceText(new FindTextParams("13-Dec-22 22:16:00", false, true), termEnd.ToString("yyyy-MM-dd") + " " + termEnd.ToString("HH:mm"));
            // "condominium" -> "flat"            var font = GrapeCity.Documents.Text.Font.FromFile(Path.Combine("Resources", "Fonts", "NotoSans-Bold.ttf"));            doc.ReplaceText(new FindTextParams("condominium", true, false), "flat", null, font);
            // For reference, append the original PDF:            Common.Util.AddNote("For reference, the following pages contain a copy of the original unmodified PDF.", doc.NewPage());            var docOrig = new GcPdfDocument();            docOrig.Load(fs);            doc.MergeWithDocument(docOrig);
            // Done:            doc.Save(stream);            return doc.Pages.Count;        }    }}