Generate signs that contain large text. Credit goes to Hugleton for constructing the letters. Credit for lowercase letters goes to sreave15. Credit for numbers and symbols goes to DaisyEseyad.
Prepare the sign for words to be written on it.
Allowed characters for sign text: A-Z, a-z, 0-9, space, and the symbols _,.?!:;()[]|'"-+=&*\/%
Make sure to paste these commands in a command block. Even though they can usually fit in player chat, it removes any excess spaces for some reason.
In text only mode, you can simply click to select a single line. This is useful for manually writing text on a sign in servers where you don't have permission for commands.
If you find any bugs, you can report them to "daisyeseyad" on Discord.