`sig
val textwidth :
bool -> Pdftext.encoding -> Pdftext.standard_font -> string -> int
val baseline_adjustment : Pdftext.standard_font -> int
val afm_data :
Pdftext.standard_font ->
(string, string) Stdlib.Hashtbl.t * (int, int) Stdlib.Hashtbl.t *
(int * int, int) Stdlib.Hashtbl.t * (string, int) Stdlib.Hashtbl.t
val stemv_of_standard_font : Pdftext.standard_font -> int
val flags_of_standard_font : Pdftext.standard_font -> int
end`