我有以下html代码:
<!DOCTYPE html>
<html>
<body>
<p>don't print this to pdf</p>
<div id="pdf">
<p><font size="3" color="red">print this to pdf</font></p>
</div>
</body>
</html>
所有我想做的是打印到pdf，无论在div中找到一个id为“pdf”。这必须使用JavaScript来完成。"pdf"文件会自动下载，文件名为"foobar.pdf"
我一直在使用jspdf来做到这一点，但它唯一的功能是“文本”，只接受字符串值。我想提交HTML到jspdf，而不是文本。
当前回答
下面的方法对我的案例很有效。
隐藏页面的其他部分，如下例所示
@media print{
body{
-webkit-print-color-adjust: exact; // if you want to enable graphics
color-adjust: exact !important; // if you want to enable graphics
print-color-adjust: exact !important; // if you want to enable graphics
* {
visibility: hidden;
margin:0;
padding:0
}
.print_area, .print_area *{
visibility: visible;
}
.print_area{
margin: 0;
align: center;
}
.pageBreak {
page-break-before : always; // If you want to skip next page
page-break-inside: avoid; // If you want to skip next page
}
}
@page {
size: A4; margin:0mm; // set page layout
background-color: #fff;
}
}
使用javascript的print函数来打印执行。
<button onclick="window.print()">Print</button>
其他回答
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
});
}
}());
如果您想导出一个表，可以查看Shield UI Grid小部件提供的导出示例。
它是通过像这样扩展配置来实现的:
...
exportOptions: {
proxy: "/filesaver/save",
pdf: {
fileName: "shieldui-export",
author: "John Smith",
dataSource: {
data: gridData
},
readDataSource: true,
header: {
cells: [
{ field: "id", title: "ID", width: 50 },
{ field: "name", title: "Person Name", width: 100 },
{ field: "company", title: "Company Name", width: 100 },
{ field: "email", title: "Email Address" }
]
}
}
}
...
如前所述，您应该使用jsPDF和html2canvas。我还在jsPDF问题中发现了一个函数，它自动将您的pdf分割成多个页面(来源)
function makePDF() {
var quotes = document.getElementById('container-fluid');
html2canvas(quotes, {
onrendered: function(canvas) {
//! MAKE YOUR PDF
var pdf = new jsPDF('p', 'pt', 'letter');
for (var i = 0; i <= quotes.clientHeight/980; i++) {
//! This is all just html2canvas stuff
var srcImg = canvas;
var sX = 0;
var sY = 980*i; // start 980 pixels down for every new page
var sWidth = 900;
var sHeight = 980;
var dX = 0;
var dY = 0;
var dWidth = 900;
var dHeight = 980;
window.onePageCanvas = document.createElement("canvas");
onePageCanvas.setAttribute('width', 900);
onePageCanvas.setAttribute('height', 980);
var ctx = onePageCanvas.getContext('2d');
// details on this usage of this function:
// https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API/Tutorial/Using_images#Slicing
ctx.drawImage(srcImg,sX,sY,sWidth,sHeight,dX,dY,dWidth,dHeight);
// document.body.appendChild(canvas);
var canvasDataURL = onePageCanvas.toDataURL("image/png", 1.0);
var width = onePageCanvas.width;
var height = onePageCanvas.clientHeight;
//! If we're on anything other than the first page,
// add another page
if (i > 0) {
pdf.addPage(612, 791); //8.5" x 11" in pts (in*72)
}
//! now we declare that we're working on that page
pdf.setPage(i+1);
//! now we add content to that page!
pdf.addImage(canvasDataURL, 'PNG', 20, 40, (width*.62), (height*.62));
}
//! after the for loop is finished running, we save the pdf.
pdf.save('test.pdf');
}
});
}
我能够得到jsPDF打印动态创建的表从一个div。
$(document).ready(function() {
$("#pdfDiv").click(function() {
var pdf = new jsPDF('p','pt','letter');
var specialElementHandlers = {
'#rentalListCan': function (element, renderer) {
return true;
}
};
pdf.addHTML($('#rentalListCan').first(), function() {
pdf.save("caravan.pdf");
});
});
});
工作伟大的Chrome和Firefox…格式在IE中都被放大了。
我还列出了以下内容:
<script src="js/jspdf.js"></script>
<script src="js/jspdf.plugin.from_html.js"></script>
<script src="js/jspdf.plugin.addhtml.js"></script>
<script src="//mrrio.github.io/jsPDF/dist/jspdf.debug.js"></script>
<script src="http://html2canvas.hertzen.com/build/html2canvas.js"></script>
<script type="text/javascript" src="./libs/FileSaver.js/FileSaver.js"></script>
<script type="text/javascript" src="./libs/Blob.js/Blob.js"></script>
<script type="text/javascript" src="./libs/deflate.js"></script>
<script type="text/javascript" src="./libs/adler32cs.js/adler32cs.js"></script>
<script type="text/javascript" src="js/jspdf.plugin.addimage.js"></script>
<script type="text/javascript" src="js/jspdf.plugin.sillysvgrenderer.js"></script>
<script type="text/javascript" src="js/jspdf.plugin.split_text_to_size.js"></script>
<script type="text/javascript" src="js/jspdf.plugin.standard_fonts_metrics.js"></script>
如果你需要下载一个特定页面的PDF文件，只需添加这样的按钮
<h4 onclick="window.print();"> Print </h4>
使用window.print()打印整个页面，而不仅仅是一个div
