An offline map is a map and its data content downloaded from a web map and used in offline applications. Offline maps support data editing. An offline map can be downloaded when connected to a network and then used later, when no network connection is available. For example, utility workers use offline maps to gather or edit data in rural locations. When a connection is re-established, offline edits can be synchronized with the source web map. Offline maps can be downloaded on-demand using custom geographic areas, or from offline map areas defined using the Manage Map Areas tool in a web map item's settings. Other ways to use maps, scenes, and data when no network connection is available include mobile packages, offline data, and data files.