//// This code is part of Document Solutions for PDF .NET demos.// Copyright (c) MESCIUS inc. All rights reserved.//using System.IO;using System.Drawing;using System.Text;using GrapeCity.Documents.Pdf;using GrapeCity.Documents.Drawing;using GCTEXT = GrapeCity.Documents.Text;using GCDRAW = GrapeCity.Documents.Drawing;
namespace DsPdfWeb.Demos{    // This sample shows how to add output intents to a PDF.    // It adds several versions of the ICC Probe Profile    // which deliberately distorts the rendered colors, so that it is easy    // to make sure that a profile is actually being used. To see the effect    // in this PDF, you may open it in Adobe Acrobat Reader DC, and set the    // Edit | Preferences | Page Display | Show Overprint Preview option to 'Always'.    // Then the deliberate color distortion added by the Probe Profile will be obvious.    // For details please see the "Output Intents" section of the PDF Specification.    public class OutputIntents    {        public int CreatePDF(Stream stream)        {            // The different versions of the ICC Probe profile:            var profiles = new (string, string)[] {                ("Probev2_ICCv4.icc", @"https://www.color.org/probeprofile.xalter"),                ("Probev1_ICCv4.icc", @"https://www.color.org/probeprofile.xalter"),                ("Probev1_ICCv2.icc", @"https://www.color.org/probeprofile.xalter"),            };            //            var doc = new GcPdfDocument();            var page = doc.NewPage();            var g = page.Graphics;            var sb = new StringBuilder();            const string bullet = "\x2022\x2003";            sb.AppendLine("This document contains the following output intents (first one is the default):");            int i = 0;            foreach (var profile in profiles)            {                sb.AppendLine($"{bullet}{profile.Item1}, source: {profile.Item2}");                using (FileStream fs = File.OpenRead(Path.Combine("Resources", "Misc", profile.Item1)))                {                    var oi = OutputIntent.Create($"Output intent testing {i++}", "", "http://www.color.org", profile.Item1, fs);                    doc.OutputIntents.Add(oi);                }            }            sb.AppendLine(                "Colors processed via the ICC Probe Profile are deliberately distorted, " +                "so that it is easy to visually confirm that a profile is being used. " +                "To see the effect in this PDF, you may open it in Adobe Acrobat Reader DC and make sure that " +                "Edit | Preferences | Page Display | Show Overprint Preview is set to 'Always', " +                "then the deliberate color distortion will be obvious.");            var rc = Common.Util.AddNote(sb.ToString(), page);            g.DrawImage(GCDRAW.Image.FromFile(Path.Combine("Resources", "Images", "roofs.jpg")),                new RectangleF(rc.Left, rc.Bottom + 24, rc.Width, rc.Width), null, ImageAlign.StretchImage);            //            doc.Save(stream);            return doc.Pages.Count;        }    }}