Saving charts as images for inclusion in other documents is a common requirement. Some browsers support this as a context menu option, but not all.
The FlexChart's saveImageToFile method makes this really easy to handle programmatically. Supported file formats include PNG, JPEG and SVG.
For example, inside a button click event.:
// save chart image to file
document.getElementById('saveButton').addEventListener('click', function(e) {
if (e.target instanceof HTMLButtonElement) {
myChart.saveImageToFile('FlexChart.png');
}
})