Fortunately, there are a couple of plug-ins that can help you identify the duplicates – Duplicate Finder (£9.95 GBP/$13.99 USD approx.) and Teekesselchen (open source donationware).īoth plug-ins come with documentation, but to get an overview of how the plug-ins work and learn a few of the pitfalls and tricks, we’ll take Teekesselchen for a test run. You could scroll through the photos in Capture Time order, manually looking for each duplicate photo, but if you have more than a few thousand photos, this could take a LONG time. Whatever the cause, it’s time to clean up… Merging catalogs can introduce duplicates, but so can importing photos with Don’t import suspected duplicates unchecked, importing exported photos or using the catalog on more than one device can also clutter your catalog with duplicate photos. Over time, you may have ended up with a load of duplicated photos that you need to clean up.