要将div捕获为PDF，您可以使用https://grabz.it解决方案。它有一个简单而灵活的JavaScript API，允许您捕获单个HTML元素(如div或span)的内容

为了实现它，你首先需要获得应用密钥和秘密，并下载(免费的)SDK。

现在来看一个例子。

假设你有HTML:

<div id="features">
    <h4>Acme Camera</h4>
    <label>Price</label>$399<br />
    <label>Rating</label>4.5 out of 5
</div>
<p>Cras ut velit sed purus porttitor aliquam. Nulla tristique magna ac libero tempor, ac vestibulum felisvulput ate. Nam ut velit eget
risus porttitor tristique at ac diam. Sed nisi risus, rutrum a metus suscipit, euismod tristique nulla. Etiam venenatis rutrum risus at
blandit. In hac habitasse platea dictumst. Suspendisse potenti. Phasellus eget vehicula felis.</p>

要捕获特征id下的内容，您需要:

//add the sdk
<script type="text/javascript" src="grabzit.min.js"></script>
<script type="text/javascript">
//login with your key and secret. 
GrabzIt("KEY", "SECRET").ConvertURL("http://www.example.com/my-page.html",
{"target": "#features", "format": "pdf"}).Create();
</script>

请注意目标:#feature。#feature是你的CSS选择器，就像前面的例子一样。现在，当页面加载时，将在脚本标记的相同位置创建图像截图，其中将包含所有的功能div的内容，没有其他内容。

你还可以对div-截图机制进行其他配置和自定义，请在这里查看

有人试过吗

    (function () {  
        var  
         form = $('.form'),  
         cache_width = form.width(),  
         a4 = [595.28, 841.89]; // for a4 size paper width and height  

        $('#create_pdf').on('click', function () {  
            $('body').scrollTop(0);  
            createPDF();  
        });  
        //create pdf  
        function createPDF() {  
            getCanvas().then(function (canvas) {  
                var  
                 img = canvas.toDataURL("image/png"),  
                 doc = new jsPDF({  
                     unit: 'px',  
                     format: 'a4'  
                 });  
                doc.addImage(img, 'JPEG', 20, 20);  
                doc.save('Bhavdip-html-to-pdf.pdf');  
                form.width(cache_width);  
            });  
        }  

        // create canvas object  
        function getCanvas() {  
            form.width((a4[0] * 1.33333) - 80).css('max-width', 'none');  
            return html2canvas(form, {  
                imageTimeout: 2000,  
                removeContainer: true  
            });  
        }  

    }());  

使用pdfMake.js和这个Gist。

(我在这里找到了Gist和html-to-pdfmake包的链接，但我现在没有使用这个包。)

在npm安装pdfmake后，将Gist保存在htmlToPdf.js中，我这样使用它:

const pdfMakeX = require('pdfmake/build/pdfmake.js');
const pdfFontsX = require('pdfmake-unicode/dist/pdfmake-unicode.js');
pdfMakeX.vfs = pdfFontsX.pdfMake.vfs;
import * as pdfMake from 'pdfmake/build/pdfmake';
import htmlToPdf from './htmlToPdf.js';

var docDef = htmlToPdf(`<b>Sample</b>`);
pdfMake.createPdf({content:docDef}).download('sample.pdf');

备注:

My use case is to create the relevant html from a markdown document (with markdown-it) and subsequently generating the pdf, and uploading its binary content (which I can get with pdfMake's getBuffer() function), all from the browser. The generated pdf turns out to be nicer for this kind of html than with other solutions I have tried. I am dissatisfied with the results I got from jsPDF.fromHTML() suggested in the accepted answer, as that solution gets easily confused by special characters in my HTML that apparently are interpreted as a sort of markup and totally mess up the resulting PDF. Using canvas based solutions (like the deprecated jsPDF.from_html() function, not to be confused with the one from the accepted answer) is not an option for me since I want the text in the generated PDF to be pasteable, whereas canvas based solutions generate bitmap based PDFs. Direct markdown to pdf converters like md-to-pdf are server side only and would not work for me. Using the printing functionality of the browser would not work for me as I do not want to display the generated PDF but upload its binary content.

你可以使用autoPrint()并将输出设置为'dataurlnewwindow'，如下所示:

function printPDF() {
    var printDoc = new jsPDF();
    printDoc.fromHTML($('#pdf').get(0), 10, 10, {'width': 180});
    printDoc.autoPrint();
    printDoc.output("dataurlnewwindow"); // this opens a new popup,  after this the PDF opens the print window view but there are browser inconsistencies with how this is handled
}

jsPDF能够使用插件。为了使它能够打印HTML，你必须包括某些插件，因此必须做以下工作:

登录https://github.com/MrRio/jsPDF下载最新版本。 在你的项目中包含以下脚本: jspdf.js jspdf.plugin.from_html.js jspdf.plugin.split_text_to_size.js jspdf.plugin.standard_fonts_metrics.js

如果希望忽略某些元素，则必须用ID标记它们，然后可以在jsPDF的特殊元素处理程序中忽略该ID。因此你的HTML应该是这样的:

<!DOCTYPE html>
<html>
  <body>
    <p id="ignorePDF">don't print this to pdf</p>
    <div>
      <p><font size="3" color="red">print this to pdf</font></p>
    </div>
  </body>
</html>

然后使用以下JavaScript代码在弹出窗口中打开创建的PDF:

var doc = new jsPDF();          
var elementHandler = {
  '#ignorePDF': function (element, renderer) {
    return true;
  }
};
var source = window.document.getElementsByTagName("body")[0];
doc.fromHTML(
    source,
    15,
    15,
    {
      'width': 180,'elementHandlers': elementHandler
    });

doc.output("dataurlnewwindow");

对我来说，这创建了一个漂亮而整洁的PDF，只包括一行“打印此PDF”。

请注意，特殊元素处理程序只处理当前版本中的id，这在GitHub问题中也有说明。州:

因为匹配是针对节点树中的每个元素进行的，所以我希望尽可能快地进行匹配。在这种情况下，它意味着“只匹配元素id”。元素id仍然是jQuery风格的“#id”，但这并不意味着支持所有的jQuery选择器。

因此，将'#ignorePDF'替换为'类选择器'。ignorePDF'没有为我工作。相反，你必须为每个元素添加相同的处理程序，你想忽略这些元素，比如:

var elementHandler = {
  '#ignoreElement': function (element, renderer) {
    return true;
  },
  '#anotherIdToBeIgnored': function (element, renderer) {
    return true;
  }
};

从示例中还指出，可以选择像'a'或'li'这样的标签。不过，对于大多数用例来说，这可能有点不受限制:

我们支持特殊的元素处理程序。用jquery方式注册它们 ID选择器用于ID或节点名称。(“#iAmID”，“div”，“span”等) 不支持任何其他类型的选择器(class, of 化合物)此时。

要添加的一个非常重要的事情是，您丢失了所有的样式信息(CSS)。幸运的是，jsPDF能够很好地格式化h1、h2、h3等，这对我的目的来说已经足够了。此外，它只打印文本节点中的文本，这意味着它不会打印文本区域等的值。例子:

<body>
  <ul>
    <!-- This is printed as the element contains a textnode -->        
    <li>Print me!</li>
  </ul>
  <div>
    <!-- This is not printed because jsPDF doesn't deal with the value attribute -->
    <input type="textarea" value="Please print me, too!">
  </div>
</body>

这个例子效果很好。

<button onclick="genPDF()">Generate PDF</button>

<script src="https://cdnjs.cloudflare.com/ajax/libs/jspdf/1.5.3/jspdf.min.js"></script>
<script>
    function genPDF() {
        var doc = new jsPDF();
        doc.text(20, 20, 'Hello world!');
        doc.text(20, 30, 'This is client-side Javascript, pumping out a PDF.');
        doc.addPage();
        doc.text(20, 20, 'Do you like that?');
    
        doc.save('Test.pdf');
    }
</script>