CKfinder image size reduce GIF not working

Question

We are uploading images (GIF animated images 2 MB) via CKfinder. Its actual size is 1.9 MB. After uploading to the server, it converts to 400 KB. Here is the confing of CKfinder.

'name'              => 'Images',
'directory'         => 'images',
'maxSize'           => "8M",
'allowedExtensions' => 'bmp,gif,jpeg,jpg,png',
'deniedExtensions'  => '',
'backend'           => 'default',
'maxWidth'    =>       2000,
'maxHeight' =>         1600,
'quality'           => 100

We are uploding images to S3. After uploading to S3 its loosing animation of GIF.

Answer 1

If you have 2MB GIFs please make sure their width and height doesn't exceed 'maxWidth' => 2000, and 'maxHeight' => 1600, because image will get resized despite 'maxSize' being bigger. Please set maxWidth and maxHeight to bigger vallues than image possible maximum e.g.

$config['images'] = array(
    'maxWidth'  => 10000,
    'maxHeight' => 10000,
    'quality'   => 80,
    'sizes' => array(
        'small'  => array('width' => 480, 'height' => 320, 'quality' => 80),
        'medium' => array('width' => 600, 'height' => 480, 'quality' => 80),
        'large'  => array('width' => 800, 'height' => 600, 'quality' => 80)
    )
);