Open the page setup, click the Paper tab, and then select the paper size you want. If you want to edit a book-sized manual, select A4 paper, and if you want to edit a magazine size, select A3 paper. Switch to the Margins tab, select Book Fold in Page Range, set the top, bottom, inner and outer margins, and confirm. At this point, the displayed page size is reduced to half of the paper size. Edit the article according to the normal editing method, print it out with a double-sided printer and bind it into a booklet like a magazine.