依赖：html2canvas.js、jspdf.js
参考：https://www.jq22.com/jquery-info22545
var whiteImg =
"data:image/jpeg;base64,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";
html2canvas(document.querySelector("#view"), {
allowTaint: !0,
scale: 1.6
}).then((function(canvas) {
var contentWidth = canvas.width,
contentHeight = canvas.height,
pageData = canvas.toDataURL("image/jpeg", 1),
pdfX, pdfY = contentHeight / 2 * .75,
whiteHeight = 60,
pdfW = 595.32,
pdfH = 841.89,
imgX = contentWidth / 2 * .75,
imgY = contentHeight / 2 * .75,
imgH = 721.89,
position = 60,
pageTempHeight = contentHeight / 2 * .75,
PDF = new jsPDF("", "pt", "a4");
if (imgY < imgH) PDF.addImage(whiteImg, "jpeg", 0, 0, pdfW, 60), PDF.addImage(pageData, "jpeg", 0,
0, imgX, imgH), PDF.addImage(whiteImg, "jpeg", 0, 781.89, pdfW, 60);
else
for (; pageTempHeight > 0;) PDF.addImage(pageData, "jpeg", 0, position, imgX, imgY), PDF
.addImage(whiteImg, "jpeg", 0, 0, pdfW, 60), PDF.addImage(whiteImg, "jpeg", 0, 782.89, pdfW,
60), position -= imgH, (pageTempHeight -= imgH) > 0 && PDF.addPage();
// PDF.save("download.pdf")
var dataurl = PDF.output('blob');
var formData = new FormData();
formData.append("file", dataurl);
$.ajax({
type: 'post',
url: "/app/upload/upload", //上传文件的请求路径
data: formData,
dataType: "json",
contentType: !1,
processData: !1,
success:function(res){
},
fail:function(e){
}
});
}))