pdf转为html查看pdf.js

发布时间:2019-06-28 23:46:03.24编辑:佚名阅读(432)

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
    <script src="//mozilla.github.io/pdf.js/build/pdf.js"></script>
    <h1>PDF.js 'Hello, world!' example</h1>
    <canvas id="the-canvas"></canvas>
</body>
<script>
    var url = '//cdn.mozilla.net/pdfjs/helloworld.pdf';
 
    // Loaded via <script> tag, create shortcut to access PDF.js exports.
    var pdfjsLib = window['pdfjs-dist/build/pdf'];
    // The workerSrc property shall be specified.
    pdfjsLib.GlobalWorkerOptions.workerSrc = '//mozilla.github.io/pdf.js/build/pdf.worker.js';
 
    // Asynchronous download of PDF
    var loadingTask = pdfjsLib.getDocument(url);
    loadingTask.promise.then(function (pdf) {
        console.log('PDF loaded');
 
        // Fetch the first page
        var pageNumber = 1;
        pdf.getPage(pageNumber).then(function (page) {
            console.log('Page loaded');
 
            var scale = 1.5;
            var viewport = page.getViewport(scale);
 
            // Prepare canvas using PDF page dimensions
            var canvas = document.getElementById('the-canvas');
            var context = canvas.getContext('2d');
            canvas.height = viewport.height;
            canvas.width = viewport.width;
 
            // Render PDF page into canvas context
            var renderContext = {
                canvasContext: context,
                viewport: viewport
            };
            var renderTask = page.render(renderContext);
            renderTask.then(function () {
                console.log('Page rendered');
            });
        });
    }, function (reason) {
        // PDF loading error
        console.error(reason);
    });
</script>
</html>


  关键字:pdfhtml查看pdf.js


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