How to add ©, ®, ™ symbols to the text in Windows, Linux and Mac

For Windows:

Hold down the alt key and use the num pad of your keyboard to create these symbols:

For copyright – 0169 – ©
Registered – 0174 – ®
Trademark – 0153 – ™

For Mac:

Hold down the alt key and press the desired letter of your keyboard to create these symbols manually:

For copyright – Alt+g – ©
Registered – Alt+r – ®
Trademark – Alt+2- ™

For Linux:

Hold down ctrl+shift+u you’ll see letter U with underline (U) then enter the desired numerics in sequence to create these symbols manually:

For trademark – ctrl+shift+u then 2122
For copyright – ctrl+shift+u then 00a9
For registered – ctrl+shift+u then 00ae