Photo organization guide
Find Duplicate Photos by File Content
Different filenames can contain the same photo.
Exact duplicate checks compare file size and content hashes rather than filenames alone. Identical copies can be detected across folders even after a rename. Review the retained copy and extras together before cleanup.
A practical first step
Exact matches and similar-looking photos are different findings. Similarity is a review aid, not proof that two files are interchangeable. Choose a keeper and use quarantine when removing extra copies. Keep a recoverable backup before changing a large collection.
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