“AdobeZii is Damaged Can’t Be Opened” or “AdobeZiiPatcher is damaged and can’t be opened. You should move it the the Trash.” error messages in Mac OS Sierra, High Sierra and Catalina are a common error when you try to install a non-App Store application. In this article I show you have to fix the problem simply.

Open a Terminal with appropriate privileges (“sudo bash” to make you root on most systems)
Enter the following, substituting “AppName (AdobeZii)” with the real name of the app (Applications folder, rename it so there are no spaces):

xattr -cr /Applications/AppName.app (AdobeZii20205.2.9.app)

OR

sudo chmod +x “/Applications/Adobe Zii 2020 5.2.9.app/Contents/MacOS/Adobe Zii 2020 5.2.9”