Dropzone.autoDiscover = false;
        var myDropzone = new Dropzone("#myDropzone", {
            url: "/file/post",
            maxFileSize: 50,
            acceptedFiles: ".pdf",
            addRemoveLinks: true,
            //more dropzone options here
        });

        //Add existing files into dropzone
        var existingFiles = [
            { name: "Filename 1.pdf", size: 12345678 },
            { name: "Filename 2.pdf", size: 12345678 },
            { name: "Filename 3.pdf", size: 12345678 },
            { name: "Filename 4.pdf", size: 12345678 },
            { name: "Filename 5.pdf", size: 12345678 }
        ];

        for (i = 0; i < existingFiles.length; i++) {
            myDropzone.emit("addedfile", existingFiles[i]);
            //myDropzone.emit("thumbnail", existingFiles[i], "/image/url");
            myDropzone.emit("complete", existingFiles[i]);                
        }