How to Change Margins In Google Docs?

I don’t know how to change margin in google docs, can anyone suggest where can I find this solution, If anyone has any suggestions do let me know.

Hello. I don’t have any special experience with it. But you can try to go to the File menu and then the page setup. But I have a different issue with Google Docs. Because I can’t print those documents from Google Drive. However, I searched on Google for this issue and found some suggestions, but due to my lack of experience, I can’t dare to apply them. Please help if possible.