Duplicate Photo Cleaner is designed to help keep your photos organized in as few as a couple of clicks.
If your photos and albums are scattered all over your computer and you never delete anything from your camera's SD card until it gets filled up then you will appreciate this app. Duplicate Photo Cleaner is different from other similar apps because it compares photos just like you would. It looks for similarities in different images and easily finds duplicates as well as photos of the same subject, resized pictures, and edited images.
Duplicate Photo Cleaner supports all popular image formats including JPG, PNG, TIFF, GIF, RAW and many more, which means it won't miss a single duplicate image on your PC.
Duplicate Photo Cleaner currently supports:
Bitmap Image Files (BMP) Joint Photographic Experts Group (JPG) Portable Network Graphics (PNG) Tagged Image File Format (TIFF) Graphics Interchange Format (GIF) Windows icon (ICO) Windows Media Photo (WMP) Apple Icon Image (ICNS) Photoshop Document (PSD) JPEG 2000 Core Image File (JP2) Truevision Graphics Adapter (TGA) Camera Raw Image File (RAW) Canon Raw CIFF Image File (CRW) Canon Raw CIFF v2 Image File (CR2) Nikon Electronic Format Image File (NEF) Pentax Electronic Format Image File (PEF) Fuji Raw Image File (RAF) Sigma Camera Raw Image File (X3F) Kodak/Roper Bayer Picture Sequence (BAY) Olympus Raw Image File (ORF) Sony Raw Image File (SRF) Sony (Minolta) Raw Image File (MRW) Digital Camera Raw Image File (DCR) Sony Digital Raw Image File (SR2) Digital NeGative Specification (DNG) Panasonic RAW Image File (RW2)
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Version History for Duplicate Photo Cleaner: https://www.duplicatephotocleaner.com/history
Limitations: Nag-screen. For $59.95 you get unlimited updates for 2 years but there is no clear indication of what else is gained over using the app as is.