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Merge pull request #28 from SyncfusionExamples/EJ2-845073-shAnnot
845073: Sample for Show and Hide Annotations
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‎How to/Show and Hide Annotations/Show and Hide Annotations/.gitignore

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dist/
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node_modules/

‎How to/Show and Hide Annotations/Show and Hide Annotations/README.md

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# Essential JS 2 QuickStart
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This project is a skeleton application used to create [Essential JS 2](https://www.syncfusion.com/products/essential-js2) web application.
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>This application uses the latest version of the [webpack-cli](https://webpack.js.org/api/cli/#commands). It requires node `v14.15.0` or higher.
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## Getting Started
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To get started you need to clone the `ej2-quickstart` repository and navigate to `ej2-quickstart` location.
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```
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git clone https://github.com/syncfusion/ej2-quickstart.git quickstart
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cd quickstart
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```
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## Installing
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We can get all the Essential JS 2 components in a single npm package [`ej2`](https://www.npmjs.com/package/@syncfusion/ej2).
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We already configure the required packages in the `package.json` file.
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You can run the below command to install all dependent packages related to this seed project.
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```
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npm install
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```
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## Testing
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This application is preconfigured with End-to-End testing and the test case is written in Jasmine.
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We run the test scripts with [Protractor](http://www.protractortest.org/#/) end-to-end test runner. The test case file can be found in the `e2e` folder.
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Protractor can interact with our web application and verify the test scripts.
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We have to install WebDriver and also need to ensure it is updated. Open a separate terminal and run the below npm script.
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```
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npm run update-webdriver
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```
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Open another terminal and run the below npm script. It will start web server to serve our application.
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```
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npm run serve
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```
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Once the web server is up and running, we can run the end-to-end tests using the below npm script
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```
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npm run test
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```
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> **Note:** Since Protractor is using the Selenium Standalone Server, the Java Development Kit (JDK) need to be installed in your local machine.
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If JDK is not installed in your local machine, you can download it from [here](http://www.oracle.com/technetwork/java/javase/downloads/index.html).
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## Running
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The application is configured with [webpack-dev-server](https://webpack.js.org/configuration/dev-server/#devserver), so it will serve the web application in your default browser.
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We have used [Webpack](https://github.com/webpack/webpack) for module loading.
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You can use the below npm script to run the web application.
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```
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npm run start
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```
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## Resources
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You can also refer the below resources to know more details about Essential JS 2 components.
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* [Pure JS Demos](http://ej2.syncfusion.com/demos/)
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* [Pure JS Documentation](http://ej2.syncfusion.com/documentation/)

‎How to/Show and Hide Annotations/Show and Hide Annotations/gulpfile.js

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'use strict';
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var gulp = require('gulp');
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/**
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* Compile TypeScript to JS
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*/
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gulp.task('compile', function (done) {
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var webpack = require('webpack');
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var webpackStream = require('webpack-stream');
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gulp.src(['./src/app/app.ts']).pipe(webpackStream({
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config: require('./webpack.config.js')
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}, webpack))
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.pipe(gulp.dest('./dist'))
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.on('end', function () {
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done();
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});
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});
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/**
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* Testing spec files
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*/
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var protractor = require('gulp-protractor').protractor;
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var webdriver_standalone = require('gulp-protractor').webdriver_standalone;
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var webdriver_update = require('gulp-protractor').webdriver_update_specific;
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gulp.task('e2e-serve', webdriver_standalone);
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gulp.task('e2e-webdriver-update', webdriver_update({
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webdriverManagerArgs: ['--ie', '--edge']
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}));
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gulp.task('e2e-test', gulp.series('compile', function (done) {
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var browserSync = require('browser-sync');
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var bs = browserSync.create('Essential JS 2');
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var options = {
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server: {
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baseDir: [
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'./dist/',
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],
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directory: true
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},
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ui: false,
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open: false,
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notify: false
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};
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bs.init(options, function () {
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gulp.src(['./spec/**/*.spec.js'])
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.pipe(protractor({
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configFile: 'e2e/protractor.conf.js'
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}))
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.on('error', function (e) {
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console.error('Error: ' + e.message);
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done();
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process.exit(1);
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})
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.on('end', function () {
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done();
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process.exit(0);
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});
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});
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}));

‎How to/Show and Hide Annotations/Show and Hide Annotations/license

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Essential JS 2 library is available under the Syncfusion Essential Studio program, and can be licensed either under the Syncfusion Community License Program or the Syncfusion commercial license.
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To be qualified for the Syncfusion Community License Program you must have a gross revenue of less than one (1) million U.S. dollars ($1,000,000.00 USD) per year and have less than five (5) developers in your organization, and agree to be bound by Syncfusion’s terms and conditions.
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Customers who do not qualify for the community license can contact [email protected] for commercial licensing options.
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Under no circumstances can you use this product without (1) either a Community License or a commercial license and (2) without agreeing and abiding by Syncfusion’s license containing all terms and conditions.
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The Syncfusion license that contains the terms and conditions can be found at
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https://www.syncfusion.com/content/downloads/syncfusion_license.pdf

‎How to/Show and Hide Annotations/Show and Hide Annotations/package.json

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{
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"name": "ej2-quickstart",
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"version": "0.0.1",
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"description": "Essential JS 2 typescript quick start application",
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"author": "Syncfusion Inc.",
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"license": "SEE LICENSE IN license",
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"repository": {
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"type": "git",
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"url": "https://github.com/syncfusion/ej2-quickstart.git"
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},
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"scripts": {
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"start": "webpack-dev-server --mode development",
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"build": "webpack --mode production",
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"serve": "gulp e2e-serve",
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"test": "gulp e2e-test",
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"update-webdriver": "gulp e2e-webdriver-update"
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},
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"devDependencies": {
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"ajv": "^8.11.2",
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"browser-sync": "^2.18.12",
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"gulp": "*",
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"typescript": "*",
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"gulp-protractor": "*",
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"gulp-typescript": "*",
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"jasmine": "^2.6.0",
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"css-loader": "^6.7.2",
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"ts-loader": "^9.4.1",
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"mini-css-extract-plugin": "^2.7.0",
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"html-webpack-plugin": "^5.5.0",
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"webpack": "^5.75.0",
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"webpack-cli": "^5.0.0",
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"webpack-dev-server": "^4.11.1",
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"webpack-stream": "^7.0.0"
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},
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"dependencies": {
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"@syncfusion/ej2": "*"
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}
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}

‎How to/Show and Hide Annotations/Show and Hide Annotations/src/app/app.ts

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import { PdfViewer, Toolbar, Magnification, Navigation, LinkAnnotation, ThumbnailView, BookmarkView,
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TextSelection, TextSearch, Print, Annotation, FormFields, FormDesigner, PageOrganizer } from '@syncfusion/ej2-pdfviewer';
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PdfViewer.Inject(Toolbar, Magnification, Navigation, LinkAnnotation, ThumbnailView, BookmarkView,
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TextSelection, TextSearch, Print, Annotation, FormFields, FormDesigner, PageOrganizer);
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// Create the PDF viewer instance
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let pdfviewer: PdfViewer = new PdfViewer();
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pdfviewer.resourceUrl = 'https://cdn.syncfusion.com/ej2/30.1.37/dist/ej2-pdfviewer-lib';
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pdfviewer.documentPath = 'https://cdn.syncfusion.com/content/pdf/pdf-succinctly.pdf';
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// Append the viewer to the container element
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pdfviewer.appendTo('#PdfViewer');
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// Variable to store exported annotations
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let exportObject: any = "";
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// Function to hide annotations
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function HideAnnotations(): void {
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pdfviewer.exportAnnotationsAsObject().then(function(value: any) {
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exportObject = value;
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pdfviewer.deleteAnnotations();
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});
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}
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// Function to unhide annotations
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function UnHideAnnotations(): void {
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pdfviewer.importAnnotation(JSON.parse(exportObject));
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}
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// Add event listeners to buttons
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document.getElementById('hideBtn')?.addEventListener('click', HideAnnotations);
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document.getElementById('unhideBtn')?.addEventListener('click', UnHideAnnotations);

‎How to/Show and Hide Annotations/Show and Hide Annotations/src/index.html

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>Essential JS 2</title>
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<meta charset="utf-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no" />
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<meta name="description" content="Essential JS 2" />
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<meta name="author" content="Syncfusion" />
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<link rel="shortcut icon" href="resources/favicon.ico" />
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<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
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</head>
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<body>
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<button id="hideBtn">Hide Annotation</button>
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<button id="unhideBtn">Show Annotation</button>
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<!--Element which will render as PDF Viewer -->
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<div id="PdfViewer"></div>
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</body>
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</html>

‎How to/Show and Hide Annotations/Show and Hide Annotations/src/resources/favicon.ico

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‎How to/Show and Hide Annotations/Show and Hide Annotations/src/styles/styles.css

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@import '../../node_modules/@syncfusion/ej2-base/styles/material.css';
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@import '../../node_modules/@syncfusion/ej2-buttons/styles/material.css';
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@import '../../node_modules/@syncfusion/ej2-dropdowns/styles/material.css';
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@import '../../node_modules/@syncfusion/ej2-inputs/styles/material.css';
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@import '../../node_modules/@syncfusion/ej2-navigations/styles/material.css';
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@import '../../node_modules/@syncfusion/ej2-popups/styles/material.css';
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@import '../../node_modules/@syncfusion/ej2-splitbuttons/styles/material.css';
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@import "../../node_modules/@syncfusion/ej2-pdfviewer/styles/material.css";
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@import "../../node_modules/@syncfusion/ej2-notifications/styles/material.css";

‎How to/Show and Hide Annotations/Show and Hide Annotations/tsconfig.json

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{
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"compilerOptions": {
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"target": "es2016",
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"module": "ES6",
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"sourceMap": true,
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"esModuleInterop": true,
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"forceConsistentCasingInFileNames": true,
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"strict": true,
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"skipLibCheck": true,
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"moduleResolution": "node"
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}
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}

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