Businesses in document management and storage help organisations organise, protect and access paper records and digital files. Services may include collecting and cataloguing archived documents, storing boxes in secure facilities, indexing records so they can be found when needed, and arranging delivery or return. Some providers offer scheduled retrieval, tracking of items in storage and retention schedules to help clients manage records throughout their useful life. Digital services can include scanning paper files, optical character recognition, document indexing and conversion into searchable electronic records. Providers may also supply document management systems for storing, sharing and controlling access to files, with features such as version histories, permissions and audit trails. Related services can include records consultancy, secure confidential shredding and digital archiving.