If you want to use the software without the risks associated with piracy, here are your best options:
Automatically selects duplicates for deletion based on your preferences (size, date, or resolution).
A powerful, professional-grade open-source photo management tool that includes a sophisticated duplicate finder.
While the idea of a is tempting, the security risks to your digital life far outweigh the cost of the software. If you have a massive library to clean, the official version offers peace of mind and safety. If you are on a budget, stick to reputable freeware alternatives like digiKam.
Duplicate Photo Fixer Pro: The Ultimate Guide to Managing Your Photo Library