You probably don’t typically alter the default margins in a Google Doc. But a marketing proposal or design project might require you to change the margins, and if you’ve never done it before, it can seem complicated.
Changing the left and right margin space is easy. You simply click and hold the small blue triangle on the left and right side of the ruler at the top of your Google Doc, and drag it to another position:
It’s important to note you must drag the blue triangle, not the rectangle right above it. The rectangle on your ruler changes a paragraph’s indentation, not the margins.
However, dragging the triangle alone alters the left and right margins. What do you do when you need to change all the margins at once? It’s an easy three step process:
1. Go to File > Page Setup…
2. In the text box beside Top, Bottom, Left, Right (under Margin), type in a margin size.
3. Click “OK”. If you plan on using the margins often, you could also click “Set as default”.
And that’s it! Hopefully, this will help you create more customized Google docs to fit your needs. If you’re also interested in changing your paragraph indentations as well, check out How to Create a Hanging Indent in Google Docs.
Original source: https://blog.hubspot.com/marketing/google-docs-margins