1 \documentclass[a6paper]{ltjsarticle}
2 %\documentclass[paper=b5j]{jlreq}
3 \usepackage{luatexja-adjust}
4 \ltjenableadjust[profile]
5 \usepackage[pdfbox]{gentombow}
9 \kern\dimexpr-\oddsidemargin-1in-10mm%
10 \raisebox{\dimexpr-.5\paperheight+\headsep+\headheight+\topskip+\topmargin+1in}%
11 {\vrule height0mm depth.5\paperheight width 5pt\vrule height.5\paperheight depth 0mm width 5pt}%
13 aiueo \strip@pt\dimexpr0.35145980351459803\paperheight mm%