js实现pdf下载功能

<a href="path_to_your_pdf.pdf" download="filename.pdf">Download PDF</a>

function downloadPDF(url, filename) {
    fetch(url)
        .then(response => response.blob())
        .then(blob => {
            const link = document.createElement('a');
            link.href = URL.createObjectURL(blob);
            link.download = filename;
            document.body.appendChild(link);
            link.click();
            document.body.removeChild(link);
        })
        .catch(error => console.error('Error downloading PDF:', error));
}

// 使用示例
downloadPDF('/api/get-pdf', 'document.pdf');

<script src="https://cdnjs.cloudflare.com/ajax/libs/jspdf/2.4.0/jspdf.umd.min.js"></script>
<script>
    function generateAndDownloadPDF() {
        const doc = new jsPDF();
        doc.text('Hello world!', 10, 10);
        doc.save('document.pdf');
    }
</script>

<button onclick="generateAndDownloadPDF()">Download PDF</button>