How to Remove Header Space
in Google Docs

Open your Google Docs document.

Double-click the header area at the top of the document.

The header section will open for editing.

To remove the header space, click and drag the bottom margin of the header upwards to reduce its size.

You can also delete the content in the header if it is no longer needed.

Once you’re done, click anywhere outside the header area to close it and return to the document body.