What we’re looking at here is the line spacing after a paragraph. Head up to the Format menu > Line spacing > Custom spacing. You can also sometimes just highlight the blank page and delete it. So before you try anything more involved, just put your cursor at the end of the text on the page before and hit Delete. The first way is going to seem pretty simple, but you’d be surprised how many people don’t try it. The good news is that deleting blank pages in Docs is pretty straightforward, and there a few different ways to do it.
Finding unwanted blank pages in your Google Docs happens sometimes, especially when working with documents that originated from another source.