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0001 .. meta:: 0002 :description: digiKam Maintenance Tool to Rebuild Fingerprints 0003 :keywords: digiKam, documentation, user manual, photo management, open source, free, learn, easy, maintenance, fingerprints 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_fingerprints: 0012 0013 Rebuild Fingerprints 0014 ==================== 0015 0016 .. contents:: 0017 0018 .. figure:: images/maintenance_rebuild_fingerprints.webp 0019 :alt: 0020 :align: center 0021 0022 The digiKam Maintenance Options to Rebuild the Fingerprints 0023 0024 Fingerprints are necessary for finding duplicates and similar items and for finding images by sketches. For detailed description see :ref:`the Similarity View section <similarity_view>`. 0025 0026 This process provides only one option to rebuild the contents in the database: **Scan for Changed or Non-Cataloged Items**. This option will run the rebuild faster to prevent to process already register items in database. 0027 0028 .. note:: 0029 0030 This process can also be called from the **Similarity View** from left sidebar by the button **Update Fingerprints**. 0031 0032 .. figure:: images/maintenance_update_fingerprints.webp 0033 :alt: 0034 :align: center 0035 0036 The digiKam Update Similarity Button from the Left Sidebar 0037 0038 While the rebuild fingerprints process is under progress, notification on the bottom right of main windows will be visible to indicate the amount of items already done. 0039 0040 .. figure:: images/maintenance_fingerprints_process.webp 0041 :alt: 0042 :align: center 0043 0044 The digiKam Rebuild Fingerprints Process Running in the Background