Margins in a document are the white space that surrounds the text in your file. They are displayed at the top, bottom, left and right. While the standard margins are good usually, you sometimes need to change them. Here's how to check.
How to check margins in Google Docs
Managing margins in your document is a simple process that you can do in a couple of ways: from the ruler or menu bar.
Note: Changing the margins affects each page of the document. You cannot change the margins of a single page separately from another.
Control margins Use the ruler
Once you have opened your file, look at the rulers at the top and left of the document. The top ruler controls the left and right margins while the other controls the upper and lower margins. The gray area on the ruler indicates the current margin.
The margin line is the line on the ruler between the margin and the useful area of the document. Click and drag the margin line to adjust the padding. The standard is one inch or 2.54 cm, depending on which device you use.
Note that the top margin is hiding behind the blue line and the arrow.
Repeat this step for each page you want to adjust.
Google Docs dynamically changes the margin as you lurk with the ruler lines.
Control margins Use the menu bar
You can also set specific margins with menu commands instead of dragging the margin line into a ruler.
Open the "File" menu and then click "Page Settings".
In the Page Settings window, type the marginal transmissions you want, and then click "OK".
That's all there is! You are now the master of your domain, and the document's margins are under your full control.