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+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="UTF-8">
+  <title>'Hello, world!' example</title>
+</head>
+<body>
+
+<h1>'Hello, world!' example</h1>
+
+<canvas id="the-canvas" style="border: 1px solid black; direction: ltr;"></canvas>
+
+<script src="../../node_modules/pdfjs-dist/build/pdf.mjs" type="module"></script>
+
+<script id="script" type="module">
+  //
+  // If absolute URL from the remote server is provided, configure the CORS
+  // header on that server.
+  //
+  const url = './helloworld.pdf';
+
+  //
+  // The workerSrc property shall be specified.
+  //
+  pdfjsLib.GlobalWorkerOptions.workerSrc =
+    '../../node_modules/pdfjs-dist/build/pdf.worker.mjs';
+
+  //
+  // Asynchronous download PDF
+  //
+  const loadingTask = pdfjsLib.getDocument(url);
+  const pdf = await loadingTask.promise;
+  //
+  // Fetch the first page
+  //
+  const page = await pdf.getPage(1);
+  const scale = 1.5;
+  const viewport = page.getViewport({ scale });
+  // Support HiDPI-screens.
+  const outputScale = window.devicePixelRatio || 1;
+
+  //
+  // Prepare canvas using PDF page dimensions
+  //
+  const canvas = document.getElementById("the-canvas");
+  const context = canvas.getContext("2d");
+
+  canvas.width = Math.floor(viewport.width * outputScale);
+  canvas.height = Math.floor(viewport.height * outputScale);
+  canvas.style.width = Math.floor(viewport.width) + "px";
+  canvas.style.height = Math.floor(viewport.height) + "px";
+
+  const transform = outputScale !== 1
+    ? [outputScale, 0, 0, outputScale, 0, 0]
+    : null;
+
+  //
+  // Render PDF page into canvas context
+  //
+  const renderContext = {
+    canvasContext: context,
+    transform,
+    viewport,
+  };
+  page.render(renderContext);
+</script>
+
+<hr>
+<h2>JavaScript code:</h2>
+<pre id="code"></pre>
+<script>
+  document.getElementById('code').textContent =
+      document.getElementById('script').text;
+</script>
+</body>
+</html>