The .preface command sets the automatic preface formatting. If a .preface command has already been issued, the page numbers resume where the last .preface command ended.
Preface sections display in the table of contents with Roman numeral page numbers. To set the page numbers to Roman numerals in the preface header/footer, specify the r option in the .footing command.
The preface mode continues until an .xpreface command is encountered.
.preface text
.pf
| text | Preface heading. The heading text is centered at the top of the next page and begins a separate page numbering scheme. |