Keyboard shortcuts can be used to put umlauts, or "double dots," over letters. The shortcut for double dots over the letter "i" is "Alt + 0207" for an uppercase i and "Alt + 0239" for a lowercase i.Continue Reading
Each character has a certain code shortcut. For an uppercase double-dotted "i", the code is "Alt + 0207", and "Alt + 0239" for a double-dotted lowercase "i".
Num Lock must be turned on for the code to be entered.
To enter the code shortcut, hold down the "Alt" key, type in the numerical code and then release the "Alt" key. The letter with an umlaut above it then appears.