You can add a border in a Google Docs page using a workaround, since there's no built-in border tool for doing this ...

You can add a border to a PowerPoint slide by adding a rectangle shape and removing the fill color, which will give the appearance of a border.

Follow the steps below to add and remove Borders or Outlines from Text Boxes or around Paragraphs in Microsoft PowerPoint. To edit the text into the text box, follow these steps: Click on the text box ...

Since there isn’t an actual border feature in Google Docs, you can add objects to your document and give it the appearance of having a border. Let’s look at the three ways in which you can do that.