gs -sDEVICE=pdfwrite -dNOPAUSE -dBATCH \
-sFONTPATH=/usr/share/fonts/noto \
-dSubsetFonts=true \
-sOutputFile=output.pdf input.pdf
If you legally own a PDF with embedded CID fonts:
# Using mupdf-tools
mutool extract yourfile.pdf
sudo cp *.otf /usr/share/fonts/opentype/cidfonts/
sudo fc-cache -fv
No. Type 1 fonts are obsolete single-byte PostScript fonts. CID fonts are multi-byte and still widely used in PDFs. cid font f1 f2 f3 f4 f5 f6 f7 fonts free verified download