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This Hidden Feature in Today's Phone Gallery: Even Post-90s Don't Know About It

The image rotation and flip features built into your phone's gallery are far more powerful than you imagine. This article reveals hidden tricks that most post-90s don't know: horizontal flip can correct visual deviations in portraits, long-press rotation allows fine-tuning to calibrate the horizon, and combining flip and rotation solves issues with mirrored text and composition, allowing you to easily rescue wasted shots without third-party software.