// // 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 System.Text; using GrapeCity.Documents.Pdf; using GrapeCity.Documents.Text; using GrapeCity.Documents.Drawing; using System.Linq; namespace DsPdfWeb.Demos { // This demo shows how to remove some instances (locations) of an image // from a PDF using the GcPdfDocument.RemoveImages() method. public class RemoveImageLocation { public int CreatePDF(Stream stream) { using var fs = File.OpenRead(Path.Combine("Resources", "PDFs", "ImageTransparency.pdf")); var doc = new GcPdfDocument(); doc.Load(fs); // Get the list of images in the document: var imageInfos = doc.GetImages(); // For each image with multiple locations, remove the leftmost location: foreach (var ii in imageInfos) { if (ii.Locations.Count > 1) { int iLeft = -1; for (int i = 0; i < ii.Locations.Count; i++) { if (iLeft == -1 || ii.Locations[i].PageBounds.ToRect().Left < ii.Locations[iLeft].PageBounds.ToRect().Left) iLeft = i; } // Remove the locations we want to keep: for (int i = ii.Locations.Count - 1; i >= 0; i--) if (i != iLeft) ii.Locations.RemoveAt(i); // Remove the locations that are left: doc.RemoveImages([ii]); } } // Done: doc.Save(stream); return doc.Pages.Count; } } }