Viewing images (and PDF files) on a Mac using Preview app is disappointingly slow. Opening (double-clicking) a high-resolution photo will take you about 5 – 10 seconds to appear. Well, I have good news for you. There’s an alternative and faster way to view images (and preview all other items) on your Mac: Quick Look, that little eye icon on the toolbar. By default, the Quick Look icon is hidden. You need to first access the toolbar setting to make it one of your default icons on your toolbar.
You see that eye icon? That’s the Quick Look button.
Clicking on the Quick Look button launches an unbelievably fast preview of any file that you selected. And selecting multiple photos launches an instant slide show.
Right-click on the tool bar area and select “Customize Toolbar…“. This will reveal a lot of hidden features which you can add on the toolbar for instant access.
Simply drag and drop any of the icon you wish to appear on your toolbar, and voila!
Shortcut: Space Bar
Or you can use a shortcut: Just hit the spacebar with your highlighted file and it will launch a quick look. Hit space bar again and it will close. 🙂