Save Dropped file with couchdb

[nirmal-tops]

I am using couchdb jquery api.
With normal input type file, I am saving image as attachment with ajaxsubmit request .

HTML::

JS::

$('#form_id').ajaxSubmit({
// Submit the form with the attachment
url: "/"+ database_name +"/"+ couchdb_document_id,
success: function(response) {
console.log("success");
},
error: function(data, error, reason) {
console.log("error");
}
});

Now I want to save dropped file. but I am getting base64 encoded string, which is representing the image.

I want to drooped image as a file object. How can I get same file object for dropped element, as I am getting while uploading with input type file.