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0001 .. meta:: 0002 :description: Overview to digiKam Maintenance Tool 0003 :keywords: digiKam, documentation, user manual, photo management, open source, free, learn, easy, overview 0004 0005 .. metadata-placeholder 0006 0007 :authors: - digiKam Team 0008 0009 :license: see Credits and License page for details (https://docs.digikam.org/en/credits_license.html) 0010 0011 .. _maintenance_overview: 0012 0013 Overview 0014 ======== 0015 0016 .. contents:: 0017 0018 Maintenance is a tool running processes in the background to maintain image collections and database contents. 0019 0020 Depending on your workflow, your digiKam settings and whether you work on your images collection also with other programs it might be necessary to run maintenance operations from time to time to update the digiKam **databases** and also your images regarding **duplicates**, **face tags**, **quality labels**, etc. The maintenance tool can do that for you, even more than one operation in one go depending on your requirements. 0021 0022 .. figure:: images/maintenance_tool.webp 0023 :alt: 0024 :align: center 0025 0026 The digiKam Maintenance Dialog 0027 0028 The list of tools is presented in a sequential order and cannot be changed. Only the tools to activate or deactivate during a maintenance session can be selected. The sequence of tools is relevant of the order to populate the information in database on the first time, and the way to use these information in a second time. 0029 0030 The tools available from the list are listed below: 0031 0032 1. **Scan For New Items**: scan for albums and items to populate the database. 0033 0034 2. **Perform Database Cleaning**: scan albums and items for irrelevant entries in database. 0035 0036 3. **Rebuild Thumbnails**: scan albums to update the item thumbnails. 0037 0038 4. **Rebuild Finger-prints**: scan albums to update item finger-prints used with **Similarity** searches. 0039 0040 5. **Find Duplicate Items**: scan albums to update list of duplicates items based on **Similarity** finger-prints. 0041 0042 6. **Detect and Recognize Faces**: perform automatic faces management updates. 0043 0044 7. **Image Quality Sorter**: perform an automatic scan of items to sort items by quality and apply **Pick Labels** in database. 0045 0046 8. **Sync Metadata and Database**: perform synchronization of items metadata with database contents or vice versa.