pbojinov
6/23/2015 - 6:09 PM

download jpeg

download jpeg

// http://stackoverflow.com/questions/3916191/download-data-url-file
// http://stackoverflow.com/questions/10473932/browser-html-force-download-of-image-from-src-dataimage-jpegbase64
// http://stackoverflow.com/questions/17397319/save-canvas-as-jpg-to-desktop

function getBase64Image(img) {
    // Create an empty canvas element
    var canvas = document.createElement("canvas");
    canvas.width = img.width;
    canvas.height = img.height;

    // Copy the image contents to the canvas
    var ctx = canvas.getContext("2d");
    ctx.drawImage(img, 0, 0);

    // Get the data-URL formatted image
    // Firefox supports PNG and JPEG. You could check img.src to
    // guess the original format, but be aware the using "image/jpg"
    // will re-encode the image.
    var dataURL = canvas.toDataURL("image/png");

    return dataURL.replace(/^data:image\/(png|jpg);base64,/, "");
}

function downloadURI(uri, name) {
  var link = document.createElement("a");
  link.download = name;
  link.href = uri;
  link.click();
}

a = document.getElementById('ctl00_bodycontent_photoproxy')
b = getBase64Image(a)
downloadURI("data:image/jpeg;base64,"+b, 'vegas-test.jpeg');