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I use Mac. When I do a presentation or make a screen recording, sometimes I need to zoom in to the part where the focus is; then I need to zoom out to restore the normal screen size.

I have seen people doing this, but I don't know how they achieved that by keyboard and mouse.

Does anyone know?

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  • I know that we could post-process videos. But I have seen people doing this during presentation, so I think they achieved that in real-time by keyboard and mouse, that's what I want. – SoftTimur Nov 24 '20 at 3:53
  • That’s great details to add to the question body (hint, hint) – bmike Nov 24 '20 at 4:10
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I believe you can do this with accessibility features that are baked into macOS. They're located under System Preferences -> Accessibility. You can change the keyboard shortcuts under System Preferences -> Keyboard.

There are a couple different settings for the zoom type. It sounds like you might want to try fullscreen.

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You can do that by holding the CTRL-key and scroll up (zoom in) or down (zoom out).

You may have to enable the setting first. The setting is called "Use scroll gesture with modifier keys to zoom:". You can find it under System Settings -> Accessibility -> Zoom.

Make sure Zoom style is set to Full screen.

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Assuming you have pinch to zoom enabled in your trackpad settings, couldn't you pinch in and out on the trackpad in order to zoom in and out?

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