gs -dSAFER -dBATCH -dNOPAUSE -sDEVICE=pdfwrite \ -sOutputFile=fixed.pdf \ -c "/cidfontf1 font new /HeiseiMin-W3 findfont install" \ -f broken.pdf
When PostScript interpreters (like Adobe CPSI or Harlequin RIP) saw an F1 metric file linked to a CIDFont, they could render complex scripts accurately. However, this dual-system is largely legacy; modern workflows have merged these metrics directly into OpenType-CID fonts. cidfontf1 font new