html2canvas

1.安装

cnpm install --save html2canvas

2.引用

 components: {
    html2canvas
 }

3.方法

                             html2canvas(document.getElementById("pdf_canvas_1")).then(function (canvas) {
            console.log(canvas)
            /*图片格式：image/jpg、image/png、image/jpeg等*/
            var image = canvas.toDataURL("image/png");
            let $a = document.createElement('a');
            $a.setAttribute("href", image);
            $a.setAttribute("download", "图片名称");
            $a.click();
    });
}