This is a very old technique that has been used by newspapers, most likely pre-dating modern photo editing software.
One explanation I have heard is that they used physical tape such as Rubylith ([https://en.wikipedia.org/wiki/Rubylith](https://en.wikipedia.org/wiki/Rubylith)) on a photo in the darkroom to prepare them for layout and printing.
Today, photo editing software often emulates this method digitally.
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