Emacs: Change Font Size (For Current Session)

Change Font Size, Globally, via Menu

Change Font Size, Globally, by Mouse

new in Emacs 29 (date 2023)

hold down Ctrl+Alt then scroll mouse wheel. (the command name is mouse-wheel-global-text-scale )

Change Font Size, Globally, by Command

new in Emacs 29 (date 2023)

Alt+x global-text-scale-adjust

then press

• = → increase
• - → decrease
• 0 → reset

Press Space to exit.

Change Font Size, Current Buffer, by Command

Alt+x text-scale-adjust

Changes font size in current buffer. Call it, then

• = → increase
• - → decrease
• 0 → reset

Press Space to exit.

Alt+x text-scale-increase

Make font size larger in current buffer.

Alt+x text-scale-decrease

Make font size smaller in current buffer.

Change Font Size, Current Buffer, by Mouse

Hold Ctrl then mouse scroll up or down. ( the command called is mouse-wheel-text-scale )

Works in {Windows, Mac, Linux}.