A file management device includes a processor configured to: add specific information to a file to be managed, the specific information specifying the file to be managed which is stored in a file system, the specific information being managed in association with a storage location on the file system; and when the file downloaded to an outside of the file system is re-uploaded from an external device to the file system, acquire the specific information added to the file, and specify the storage location on the file system based on the specific information.