Important: If you change the name used where you’re signed in to your Apple Account, the name appears in all apps and other locations that use your Apple Account.
If you stop sharing a document, the author name in comments and change tracking reverts to the author name you set in Pages settings.
Your author color is associated with the changes you make and the comments you add to a document. You can change your author color at any time.
Choose View > Comments & Changes > Author Color (from the View menu at the top of your screen), then choose a color.
If you have a document open, all of your comments and changes in the document switch to the new color, and any new documents you create using the same author name use the new color.
If you’re using Intro to collaboration in PagesAdd and print comments in Pages on Mac