This article explains how to change the default formatting settings in Google Docs. Instructions apply to the desktop version of Google Docs.
How to Change the Default Font in Google Docs – and Other Formatting Settings
Once you change the default settings, all documents you create afterward will reflect those settings. Of course, you can still change the formatting of each individual element in a document, but the default formatting provides a consistent starting point.
To change the default settings for normal text in Google Docs, follow these steps:
Highlight the text you want to change.