[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["難以理解","hardToUnderstand","thumb-down"],["資訊或程式碼範例有誤","incorrectInformationOrSampleCode","thumb-down"],["缺少我需要的資訊/範例","missingTheInformationSamplesINeed","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["上次更新時間：2025-09-04 (世界標準時間)。"],[[["\u003cp\u003eDocument AI offers four predefined IAM roles: Administrator, Editor, Viewer, and API User, each with distinct access levels and permissions.\u003c/p\u003e\n"],["\u003cp\u003eBasic roles in IAM apply to entire projects and grant broader permissions across various Google Cloud services, unlike predefined roles.\u003c/p\u003e\n"],["\u003cp\u003eBasic roles can behave like groups in certain scenarios, granting additional access when applied to buckets or when setting ACLs on objects.\u003c/p\u003e\n"],["\u003cp\u003eCustom roles can be created to bundle specific permissions tailored to unique requirements, providing flexibility beyond the predefined roles.\u003c/p\u003e\n"]]],[],null,["# IAM roles for Document AI\n\nPredefined roles\n----------------\n\nThe following table describes Identity and Access Management (IAM) roles\nthat are associated with Document AI and lists the permissions that are\ncontained in each role. Unless otherwise noted, these roles can be applied\neither to entire projects or specific processors.\n\nBasic roles\n-----------\n\nBasic roles are roles that existed prior to IAM. These roles have\nunique characteristics:\n\n- Basic roles can only be granted for an entire project, not for individual\n buckets within the project. Like other roles that you grant for a project,\n basic roles apply to all buckets and objects in the project.\n\n- Basic roles contain additional permissions for other Google Cloud\n services that are not covered in this section. See [basic roles](/iam/docs/understanding-roles#basic) for a\n general discussion of the permissions that basic roles grant.\n\n- In some cases, basic roles can be used as if they were groups, which causes\n any principal that has the basic role to get additional access for some\n resources.\n\n - A basic role can be used as if it were a group when granting roles for\n buckets.\n\n - A basic role can be used as if it were a group when setting ACLs on\n objects.\n\n For a discussion of additional access that principals with basic roles\n typically gain due to this behavior, see\n [modifiable behavior](#basic-roles-modifiable).\n\nCustom roles\n------------\n\nYou may wish to define your own roles which contain bundles of permissions that\nyou specify. To support this, IAM offers [custom roles](/iam/docs/creating-custom-roles).\n\nWhat's next\n-----------\n\n- Learn about each [IAM permission for Document AI](/document-ai/docs/access-control/iam-permissions).\n\n- For a reference of other Google Cloud roles, see [Understanding Roles](/iam/docs/understanding-roles)."]]
