//// This code is part of Document Solutions for PDF .NET demos.// Copyright (c) MESCIUS inc. All rights reserved.//using System.IO;using GrapeCity.Documents.Pdf;
namespace DsPdfWeb.Demos{    // This example shows how to find and delete all occurrences of a text string in a PDF.    public class DeleteText    {        public int CreatePDF(Stream stream)        {            var doc = new GcPdfDocument();            using var fs = File.OpenRead(Path.Combine("Resources", "PDFs", "TimeSheet.pdf"));            doc.Load(fs);
            // Delete dates and times using regex pattern:            var ftps = new FindTextParams(@"\d+/\d+/\d+|\d+:\d+| am| pm", false, false, 72, 72, false, true);            doc.DeleteText(ftps, GrapeCity.Documents.Pdf.TextMap.DeleteTextMode.PreserveSpace);
            // For reference, append the original PDF:            Common.Util.AddNote("For reference, the following page contains 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;        }    }}