你好,我想做的是从PDF文件中获取元数据,并使用PDF-lib库进行修改
我在文档中尝试过
但我给了我
PDFDocument is not defined
我在文档中尝试过
<head>
<meta charset="utf-8" />
<script src="https://unpkg.com/[email protected]"></script>
<script src="https://unpkg.com/[email protected]"></script>
</head>
<body>
<button onclick="get()">get </button>
</body>
<script>
async function get() {
const url = 'https://pdf-lib.js.org/assets/with_cropbox.pdf'
const existingPdfBytes = await fetch(url).then(res => res.arrayBuffer())
const pdfDoc = await PDFDocument.load(existingPdfBytes, {
updateMetadata: false
})
console.log('Title:', pdfDoc.getTitle())
console.log('Author:', pdfDoc.getAuthor())
console.log('Subject:', pdfDoc.getSubject())
console.log('Creator:', pdfDoc.getCreator())
console.log('Keywords:', pdfDoc.getKeywords())
console.log('Producer:', pdfDoc.getProducer())
console.log('Creation Date:', pdfDoc.getCreationDate())
console.log('Modification Date:', pdfDoc.getModificationDate()) };
</script>
</html>
