Had to do exactly that with a bunch of screenshots I took but happened to include a bunch of unnecessary parts of the screen.

A prompt to ChatGPT and a command later and all were nicely cropped in a second.

The dread of doing it by hand and having it magically there a minute later is absolutely mind blowing. Even just 5 years ago, I would have just done it manually as it would have definitely taken more to write the code for this task.