Install vmg by entering the following commands in the terminal:
sudo apt update sudo apt install vmg
Description:
Virtual Magnifying Glass
Virtual Magnifying Glass is designed for visually-impaired and others who need to magnify a part of the screen. Unlike most similar programs it does not open a separate window for the magnification but instead puts a movable magnifying glass on screen.
Homepage: http://magnifier.sourceforge.net/
Version: 3.7.1-3
Section: universe/utils