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SF4524LogeshKumarSF4524LogeshKumar
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993766: Updated Sample for Redaction ASP.NET Core
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‎Redaction/Add Redaction Annotation Programmatically/NuGet.config‎

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<?xml version="1.0" encoding="utf-8"?>
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<configuration>
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<packageSources>
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<clear />
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<add key="nuget.org" value="https://api.nuget.org/v3/index.json" />
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</packageSources>
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<fallbackPackageFolders>
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<clear />
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</fallbackPackageFolders>
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<disabledPackageSources>
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<clear />
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</disabledPackageSources>
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</configuration>

‎Redaction/Add Redaction Annotation Programmatically/PDFViewerSample.csproj‎

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<Project Sdk="Microsoft.NET.Sdk.Web">
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<PropertyGroup>
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<TargetFramework>net6.0</TargetFramework>
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<Nullable>enable</Nullable>
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<ImplicitUsings>enable</ImplicitUsings>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="Syncfusion.EJ2.AspNet.Core" Version="*" />
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<PackageReference Include="Syncfusion.EJ2.PdfViewer.AspNet.Core" Version="*" />
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</ItemGroup>
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</Project>

‎Redaction/Add Redaction Annotation Programmatically/PDFViewerSample.sln‎

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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio Version 17
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VisualStudioVersion = 17.0.32112.339
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PDFViewerSample", "PDFViewerSample.csproj", "{39AA1883-BB43-4C46-9892-6033EA59C990}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
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Release|Any CPU = Release|Any CPU
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{39AA1883-BB43-4C46-9892-6033EA59C990}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{39AA1883-BB43-4C46-9892-6033EA59C990}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{39AA1883-BB43-4C46-9892-6033EA59C990}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{39AA1883-BB43-4C46-9892-6033EA59C990}.Release|Any CPU.Build.0 = Release|Any CPU
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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GlobalSection(ExtensibilityGlobals) = postSolution
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SolutionGuid = {5F13CE16-9CC4-4755-AFB4-367F461A209C}
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EndGlobalSection
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EndGlobal

‎Redaction/Add Redaction Annotation Programmatically/Pages/Error.cshtml‎

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@page
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@model ErrorModel
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@{
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ViewData["Title"] = "Error";
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}
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<h1 class="text-danger">Error.</h1>
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<h2 class="text-danger">An error occurred while processing your request.</h2>
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@if (Model.ShowRequestId)
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{
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<p>
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<strong>Request ID:</strong> <code>@Model.RequestId</code>
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</p>
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}
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<h3>Development Mode</h3>
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<p>
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Swapping to the <strong>Development</strong> environment displays detailed information about the error that occurred.
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</p>
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<p>
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<strong>The Development environment shouldn't be enabled for deployed applications.</strong>
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It can result in displaying sensitive information from exceptions to end users.
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For local debugging, enable the <strong>Development</strong> environment by setting the <strong>ASPNETCORE_ENVIRONMENT</strong> environment variable to <strong>Development</strong>
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and restarting the app.
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</p>

‎Redaction/Add Redaction Annotation Programmatically/Pages/Error.cshtml.cs‎

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using Microsoft.AspNetCore.Mvc;
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using Microsoft.AspNetCore.Mvc.RazorPages;
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using System.Diagnostics;
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namespace PDFViewerSample.Pages
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{
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[ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
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[IgnoreAntiforgeryToken]
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public class ErrorModel : PageModel
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{
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public string? RequestId { get; set; }
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public bool ShowRequestId => !string.IsNullOrEmpty(RequestId);
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private readonly ILogger<ErrorModel> _logger;
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public ErrorModel(ILogger<ErrorModel> logger)
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{
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_logger = logger;
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}
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public void OnGet()
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{
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RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier;
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}
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}
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}

‎Redaction/Add Redaction Annotation Programmatically/Pages/Index.cshtml‎

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@page
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@model IndexModel
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@{
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ViewData["Title"] = "Redaction programmatic support (All-in-one)";
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}
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<div class="text-center">
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<div style="margin-bottom:12px; display:flex; flex-wrap:wrap; gap:8px; align-items:center; justify-content:center;">
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<button type="button" class="e-btn" onclick="addRedaction()">Add Redaction</button>
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<button type="button" class="e-btn" onclick="deleteFirstRedaction()">Delete First Redaction</button>
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<button type="button" class="e-btn" onclick="editRedaction()">Edit Redaction</button>
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<button type="button" class="e-btn" onclick="addPageRedactions()">Add Page Redactions (1,3,5,7)</button>
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<button type="button" class="e-btn e-primary" onclick="applyRedaction()">Apply Redaction</button>
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</div>
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<ejs-pdfviewer
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id="pdfViewer"
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style="height:640px; display:block"
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resourceUrl="https://cdn.syncfusion.com/ej2/31.2.12/dist/ej2-pdfviewer-lib"
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documentPath="https://cdn.syncfusion.com/content/pdf/pdf-succinctly.pdf"
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isExtractText="true">
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</ejs-pdfviewer>
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</div>
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<script type="text/javascript">
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// Make the viewer globally accessible to all handlers
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window.onload = function () {
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window.viewer = document.getElementById('pdfViewer').ej2_instances[0];
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// Include Redaction UI entry in the main toolbar
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viewer.toolbarSettings = {
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toolbarItems: [
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'OpenOption', 'UndoRedoTool', 'PageNavigationTool', 'MagnificationTool', 'PanTool',
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'SelectionTool', 'CommentTool', 'SubmitForm', 'AnnotationEditTool', 'RedactionEditTool',
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'FormDesignerEditTool', 'SearchOption', 'PrintOption', 'DownloadOption'
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]
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};
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// Default redaction appearance settings (used by UI and when not overridden)
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viewer.redactionSettings = {
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overlayText: 'Confidential',
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markerFillColor: '#FF0000',
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markerBorderColor: '#000000',
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isRepeat: false,
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fillColor: '#000000', // final fill color after redaction is applied
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fontColor: '#FFFFFF',
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fontSize: 12,
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fontFamily: 'Arial',
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textAlign: 'Center'
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};
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};
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// 1) Add a single redaction annotation programmatically
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function addRedaction() {
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if (!window.viewer) return;
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viewer.annotation.addAnnotation('Redaction', {
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bound: { x: 200, y: 480, width: 160, height: 80 },
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pageNumber: 1,
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overlayText: 'Confidential',
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fillColor: '#000000', // preview overlay/background
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fontColor: '#FFFFFF',
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fontSize: 12,
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fontFamily: 'Arial',
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markerFillColor: '#FF0000',
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markerBorderColor: '#000000',
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beforeRedactionsApplied: false
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});
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console.log('Redaction added');
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}
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// 2) Delete the first redaction annotation (if present)
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function deleteFirstRedaction() {
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if (!window.viewer) return;
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var list = viewer.annotationCollection || [];
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var firstRedaction = null;
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for (var i = 0; i < list.length; i++) {
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if (list[i].subject === 'Redaction') { firstRedaction = list[i]; break; }
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}
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if (firstRedaction) {
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viewer.annotationModule.deleteAnnotationById(firstRedaction.annotationId);
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console.log('First redaction deleted');
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} else {
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console.warn('No redaction found to delete.');
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}
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}
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// 3) Edit existing redaction annotation properties
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function editRedaction() {
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if (!window.viewer) return;
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var list = viewer.annotationCollection || [];
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var edited = false;
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for (var i = 0; i < list.length; i++) {
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var item = list[i];
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if (item.subject === 'Redaction') {
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item.overlayText = 'EditedAnnotation';
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item.markerFillColor = '#22FF00';
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item.markerBorderColor = '#000000';
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item.isRepeat = true;
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item.fillColor = '#1F1F1F';
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item.fontColor = '#FFD400';
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item.fontSize = 14;
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item.fontFamily = 'Symbol';
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item.textAlign = 'Right';
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item.beforeRedactionsApplied = false;
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viewer.annotation.editAnnotation(item);
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edited = true;
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}
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}
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if (!edited) console.warn('No redaction found to edit.');
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else console.log('Redaction(s) edited');
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}
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// 4) Add page redactions (entire pages) by page numbers (1-based)
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function addPageRedactions() {
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if (!window.viewer) return;
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viewer.annotation.addPageRedactions([1, 3, 5, 7]);
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console.log('Page redactions added for pages 1, 3, 5, 7');
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}
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// 5) Permanently apply all redaction marks
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function applyRedaction() {
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if (!window.viewer) return;
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// Irreversible: original content will be removed
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viewer.annotation.redact();
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console.log('Redaction applied');
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}
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</script>

‎Redaction/Add Redaction Annotation Programmatically/Pages/Index.cshtml.cs‎

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using Microsoft.AspNetCore.Mvc;
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using Microsoft.Extensions.Caching.Memory;
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using Syncfusion.EJ2.PdfViewer;
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using Newtonsoft.Json;
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using Microsoft.AspNetCore.Mvc.RazorPages;
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using System.Reflection;
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using System.Net;
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namespace PDFViewerSample.Pages
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{
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[IgnoreAntiforgeryToken(Order = 1001)]
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public class IndexModel : PageModel
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{
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private readonly Microsoft.AspNetCore.Hosting.IHostingEnvironment _hostingEnvironment;
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private IMemoryCache _cache;
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public IndexModel(Microsoft.AspNetCore.Hosting.IHostingEnvironment hostingEnvironment, IMemoryCache cache)
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{
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_hostingEnvironment = hostingEnvironment;
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_cache = cache;
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}
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}
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}

‎Redaction/Add Redaction Annotation Programmatically/Pages/Privacy.cshtml‎

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@page
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@model PrivacyModel
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@{
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ViewData["Title"] = "Privacy Policy";
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}
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<h1>@ViewData["Title"]</h1>
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<p>Use this page to detail your site's privacy policy.</p>

‎Redaction/Add Redaction Annotation Programmatically/Pages/Privacy.cshtml.cs‎

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using Microsoft.AspNetCore.Mvc;
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using Microsoft.AspNetCore.Mvc.RazorPages;
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namespace PDFViewerSample.Pages
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{
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public class PrivacyModel : PageModel
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{
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private readonly ILogger<PrivacyModel> _logger;
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public PrivacyModel(ILogger<PrivacyModel> logger)
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{
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_logger = logger;
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}
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public void OnGet()
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{
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}
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}
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}

‎Redaction/Add Redaction Annotation Programmatically/Pages/Shared/_Layout.cshtml‎

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<title>@ViewData["Title"] - PDFViewerSample</title>
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<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
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<!-- Syncfusion ASP.NET Core controls styles -->
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<link rel="stylesheet" href="https://cdn.syncfusion.com/ej2/31.2.12/fluent.css" />
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<!-- Syncfusion ASP.NET Core controls scripts -->
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<script src="https://cdn.syncfusion.com/ej2/31.2.12/dist/ej2.min.js"></script>
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</head>
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<body>
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<header>
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<nav class="navbar navbar-expand-sm navbar-toggleable-sm navbar-light bg-white border-bottom box-shadow mb-3">
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<div class="container">
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<a class="navbar-brand" asp-area="" asp-page="/Index">PDFViewerSample</a>
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<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target=".navbar-collapse" aria-controls="navbarSupportedContent"
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aria-expanded="false" aria-label="Toggle navigation">
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<span class="navbar-toggler-icon"></span>
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</button>
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<div class="navbar-collapse collapse d-sm-inline-flex justify-content-between">
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<ul class="navbar-nav flex-grow-1">
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<li class="nav-item">
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<a class="nav-link text-dark" asp-area="" asp-page="/Index">Home</a>
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</li>
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<li class="nav-item">
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<a class="nav-link text-dark" asp-area="" asp-page="/Privacy">Privacy</a>
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</li>
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</ul>
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</div>
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</div>
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</nav>
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</header>
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<div class="container">
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<main role="main" class="pb-3">
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@RenderBody()
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</main>
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</div>
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<footer class="border-top footer text-muted">
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<div class="container">
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&copy; 2022 - PDFViewerSample - <a asp-area="" asp-page="/Privacy">Privacy</a>
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</div>
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</footer>
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@await RenderSectionAsync("Scripts", required: false)
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<!-- Syncfusion ASP.NET Core Script Manager -->
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<ejs-scripts></ejs-scripts>
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</body>
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</html>

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