If you are not happy with the default margin in Google Docs, you can change it to suit your requirements. Here is a simple guide that will let you change the Page Margin and Page Color in Google ...

There are two ways to set margins in Google Docs. You can use the ruler to quickly set the margins by dragging it with the mouse, or you can type the margin (in inches) in the page setup dialog box.

If you're on an iPhone, iPad or Android, open the Google Docs app and your file. Then click the pencil icon in the bottom right of the screen to edit. Select the sections you want to change ...