Add export to PDF.

[samussiah]

As an alternative to taking screenshots.

This thread explains how to export to .svg. Probably need another library to export to .pdf. Function:

function saveSvg(svgEl, name) {
    svgEl.setAttribute("xmlns", "http://www.w3.org/2000/svg");
    var svgData = svgEl.outerHTML.replace('xlink:xlink', 'xmlns:xlink');
    var preface = '<?xml version="1.0" standalone="no"?>\r\n';
    var svgBlob = new Blob([preface, svgData], {type:"image/svg+xml;charset=utf-8"});
    var svgUrl = URL.createObjectURL(svgBlob);
    var downloadLink = document.createElement("a");
    downloadLink.href = svgUrl;
    downloadLink.download = name;
    document.body.appendChild(downloadLink);
    downloadLink.click();
    document.body.removeChild(downloadLink);
}

Note one little change: .replace('xlink:xlink', 'xmlns:xlink'). Looks like the xlink namespace is deprecated, which would be a Webcharts update.

[samussiah]

PDFKit should do the trick.