cam21

function drawOnCanvas(file) { var reader = new FileReader(); reader.onload = function (e) { var dataURL = e.target.result, c = document.querySelector('canvas'), // see Example 4 ctx = c.getContext('2d'), img = new Image(); img.onload = function() { c.width = img.width; c.height = img.height; ctx.drawImage(img, 0, 0); }; img.src = dataURL; }; reader.readAsDataURL(file); }