Reviewing

The Review option allows you to review a document, change sentences, phrases and other page elements, correct spelling, etc. without actually editing it. All the changes will be recorded and shown to the user who created the document.

In order to enable the review option, the review parameter in the permissions section of the document initialization must be set to true. The document status bar will contain the Review menu option.

In case the edit parameter is set to true and the review parameter is also set to true, the user will be able to edit the document, accept or reject the changes and switch to the review mode him/herself.

Reviewing

In case the edit parameter is set to false and the review parameter is set to true, the document will be available for reviewing only.

var docEditor = new DocsAPI.DocEditor("placeholder", {
    "document": {
        "permissions": {
            "edit": false,
            "review": true
        },
        ...
    },
    ...
});
Please note that the document review will only be available for the document editor if the mode parameter is set to edit.