<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/html2canvas/1.4.1/html2canvas.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jspdf/2.5.1/jspdf.umd.min.js"></script>

$(document).ready(function() {
    $('#saveAsPdf').click(function() {
        // 获取要转换为PDF的元素
        const element = $('#contentToConvert')[0];
        
        // 使用html2canvas将HTML转换为canvas
        html2canvas(element, {
            scale: 2, // 提高分辨率
            logging: false,
            useCORS: true, // 允许跨域图片
            allowTaint: true // 允许污染图片
        }).then(canvas => {
            // 创建PDF对象
            const pdf = new jsPDF('p', 'mm', 'a4');
            const imgData = canvas.toDataURL('image/png');
            
            // 计算PDF页面大小和图片比例
            const imgWidth = pdf.internal.pageSize.getWidth();
            const imgHeight = canvas.height * imgWidth / canvas.width;
            
            // 添加图片到PDF
            pdf.addImage(imgData, 'PNG', 0, 0, imgWidth, imgHeight);
            
            // 保存PDF
            pdf.save('download.pdf');
        });
    });
});

<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/pdfmake/0.2.5/pdfmake.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/pdfmake/0.2.5/vfs_fonts.min.js"></script>

$(document).ready(function() {
    $('#saveAsPdf').click(function() {
        // 获取HTML内容
        const htmlContent = $('#contentToConvert').html();
        
        // 定义PDF文档
        const docDefinition = {
            content: [
                {
                    text: 'HTML to PDF',
                    style: 'header'
                },
                {
                    text: htmlContent,
                    style: 'content'
                }
            ],
            styles: {
                header: {
                    fontSize: 18,
                    bold: true,
                    margin: [0, 0, 0, 10]
                },
                content: {
                    fontSize: 12
                }
            }
        };
        
        // 创建PDF
        pdfMake.createPdf(docDefinition).download('download.pdf');
    });
});

$(document).ready(function() {
    $('#saveAsPdf').click(function() {
        window.print();
    });
});