pdf.js滚动翻页的例子

最新推荐文章于 2025-07-01 17:05:18 发布

天天进步2015

最新推荐文章于 2025-07-01 17:05:18 发布

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分类专栏：前端开发文章标签： pdf javascript 开发语言

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可以使用 pdf.js 创建一个简单的滚动翻页效果。以下是一个基本示例，展示如何实现：

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>PDF.js Scroll Example</title>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/pdf.js/2.11.338/pdf.min.js"></script>
    <style>
        #canvasContainer {
            overflow-y: auto;
            height: 100vh;
        }
        canvas {
            display: block;
            margin: 20px auto;
        }
    </style>
</head>
<body>
    <div id="canvasContainer"></div>
    <script>
        const url = 'path/to/your.pdf'; // 替换为你的PDF文件路径
        const canvasContainer = document.getElementById('canvasContainer');

        const loadingTask = pdfjsLib.getDocument(url);
        loadingTask.promise.then(pdf => {
            const renderPage = (num) => {
                pdf.getPage(num).then(page => {
                    const viewport = page.getViewport({ scale: 1 });
                    const canvas = document.createElement('canvas');
                    const context = canvas.getContext('2d');
                    canvas.height = viewport.height;
                    canvas.width = viewport.width;

                    const renderContext = {
                        canvasContext: context,
                        viewport: viewport,
                    };
                    page.render(renderContext).promise.then(() => {
                        canvasContainer.appendChild(canvas);
                    });
                });
            };

            for (let i = 1; i <= pdf.numPages; i++) {
                renderPage(i);
            }
        }).catch(console.error);
    </script>
</body>
</html>