If the document is printed on both sides of A4 paper and bound from the middle of the page, how to typeset and set the page number?

The specific method of typesetting and page number setting is to set the paper direction of the document to horizontal, select the page range as book folding in the page setting dialog box, and finally confirm the completion of typesetting and page number setting. The specific steps are as follows:

1. Double-click the mouse to open the document to be edited on the computer desktop.

2. Click the mouse to find the Insert button on the top menu bar, find the footer icon, and select the style of clicking the sideline.

3. The footer of the document is generated in the lower right corner of the document. Click the Page Layout button on the top menu bar to find the margins icon, and then click the Customize Margins button below.

4. Click the horizontal icon in the Paper Orientation option of the Page Setup dialog box, and select Book Folding from the page range drop-down menu.

5. At this point, you can see that the text displayed in the preview prompt is folded in half. Click OK at the bottom of the dialog box.

6. At this point, the task of typesetting and setting the footer from the middle of the page has been completed.