If you type a line or paragraph in Google Docs and realize that the capitalization of words must be different, you do not have to retype all of them. Instead, you can easily format text with these handy tools.
Changing text case with a Google Docs function
Start the browser, open a Google Docs document and select the text that you want to use in a document. want to change.
On the toolbar menu, click Format> Text> Capital Letters and choose the desired capital letters from the list. The following types of capital letters can be selected:
- Lower case letters : every letter in the selected text becomes lower case.
- Uppercase : Make any letter in the selected text uppercase.
- Title capital letter : shows the first letter of every word with a capital letter.
For this example, we want everything to be shown in capital letters. Click on "CAPITAL LETTERS" in the list.
Change text case with a Google Docs add-on
While the built-in function for Google capitalization is excellent if you want to change the text to lowercase, uppercase or uppercase, a few other options are available in other word processors. To get even more capitalization options, you need an add-on for Google Docs  RELATED: The best Google Docs add-ons
To get an add-on, open a new or existing file in Google Docs, click on "Add-ons" and then select "Get Add-ons."
Next, click on the magnifying glass icon, type "Change Case" in the search box and press Enter.  Click on the magnifying glass icon, type  Click on the "Change Case" add on in the G Suite Marketplace.
Select "Install" to add the add-on to Google Docs.
Click on "Continue" to continue installing the add-on in Google Docs.
After installing the add-on you must give him specific permissions These are fundamental to the operation of the add-on to work properly, please make sure you fully understand the permissions and trust the developer before installing an add-on.
Click "Allow" to by continuing.
 After the installation is complete, click Add-ons> Change Case to see a list of all available
That is all. You can switch between upper and lower case letters by selecting the text and changing the built-in Google function or the Add-on case.