Multiple Images to TIFF

{
    "app": {
        "launch": {
            "container": "tab",
            "web_url": "https:\/\/youfiles.herokuapp.com\/image2tiff\/"
        },
        "urls": [
            "https:\/\/youfiles.herokuapp.com\/image2tiff\/"
        ]
    },
    "api_console_project_id": "443303307199",
    "container": "GOOGLE_DRIVE",
    "default_locale": "en_US",
    "description": "__MSG_ext_description__",
    "icons": {
        "128": "icon128.png"
    },
    "name": "__MSG_ext_name__",
    "permissions": [
        "unlimitedStorage"
    ],
    "update_url": "http:\/\/clients2.google.com\/service\/update2\/crx",
    "manifest_version": 2,
    "version": "1.0.2.3"
}