Margin refers to the distance between the top, bottom, left and right edges of document content and the top, bottom, left and right edges of paper. Under special circumstances, you can modify the margins as needed, or add extra space in the margins to leave a binding position.
For some official documents and test papers, it is sometimes necessary to set binding lines for them. Follow this method again, add other information and move it to the desired location.
Binding line notes:
I suggest that before writing a paper, it is best to set the layout and style of the page, then edit the full text, then set the header and footer, and finally add the table of contents. Otherwise, if the full text is arranged, we will have to adjust the page layout later, and the mess of typesetting is self-evident. The most commonly used settings in page setup are the settings of margins, binding lines and paper size.