Mission Control is one of the most innovative functions of our Mac. Many users of other platforms, including myself, were amazed the first time we saw all the windows on our desktop open in the same window. Remember that until now the only way to jump from screen to screen was with Cmd + Tab. Mission Control was a before and after when it came to automatically switching applications, especially by viewing a preview of the desired application. Activating Mission Control, if you have it activated, is as easy as moving three fingers up on the trackpad.
The negative part of this function is the size of each window. The size is somewhat reduced to clearly see its content, but we have to bear in mind that in the case of having many windows of different applications open, it is the ideal size so that they do not overlap. In any case, MacOS is full of tricks to make one of the most productive systems that exist and therefore, this time it is not far behind.
With this simple trick you can make the window bigger, to observe its content. To do this, the first thing is to open Mission Control. If you don't have it activated, go to system preferences and click on the trackpad and on the more gestures tab. Check the Mission Control option if you have it disabled. Now slide three fingers up on the trackpad. All windows will open on the desktop as a thumbnail.
Now all select the image you want to open. Slide the cursor through the different windows. You will see that once you are on top of each of them, their edges widen and change to blue. At that moment press space and the screen will grow in size to two-thirds of the screen. This size is large enough for reading, but at the same time, it allows you to see the rest of the windows.
To return to its initial position, you just have to press space again, and the window will return to its initial size. If, on the other hand, you want to work on it, click on it in the same way as if you click when the window still has the initial size.
Come on, use "preview". You click on any document or file, you press space, and you see it large. You press the cursor and you see the next and previous files in a big way. If it is a document with multiple sheets, like a PDF, you click inside the preview and see its content without opening Acrobat or Photoshop or Pages ...
It is not a trick, it is a function.
Thanks for the comment. It is a function, but little known, according to the user's knowledge, and they have more or less knowledge. We can say that it is on the border between trick and function. Greetings.