Exact duplicates have identical file data
Two copies can have different filenames and still contain identical bytes. PhotoFold uses file hashing for exact duplicate detection. Changing embedded metadata or re-saving the image changes the file data, even when the picture looks the same.
Similar photos can contain important differences
A burst sequence may include a sharper frame or a better expression. An edited version may have a useful crop. Visual similarity helps you find candidates for comparison; it does not establish which image is better or whether one can safely be discarded.
| Example | How to think about it |
|---|---|
| The same file copied to two folders | Candidate for exact matching |
| A photo exported at a smaller size | Potential visual match; file data differs |
| Two frames in a burst | Similar scene; inspect focus and expression |
| RAW and its JPEG export | Different formats and editing flexibility; both may be useful |
Review matches before importing
In PhotoFold, open Similar Photos and review each group. Double-click for the original-quality view. Compare focus, framing and the purpose of each version before choosing Import or Skip.
Import and unmarked photos are eligible for copying; Skip excludes a photo from that import. Skip does not delete the source. Keep your backup and check imported copies before deleting anything separately.