Of course, the question was followed by a flurry of responses suggesting creating a base set of images of each slide in the deck, and then using an image comparison tool to identify changes.
当然，这个问题引来了一大堆的回复，比如建议他创建每个幻灯片的图像库，然后用图像比较工具来判断变化。
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Larson-Green demonstrated a few applications, including a fancy photo management tool that lets you slide around the screen, resize and file digital photographs using your fingers.