字体文件格式
pfb（Printer Font Binary）
PFB File – What is it and how do I open it?
# fc-list | grep pitch -i /usr/share/fonts/X11/Type1/c0419bt_.pfb: Courier 10 Pitch:style=Regular /usr/local/share/fonts/Courier 10 Pitch Regular.otf: Courier 10 Pitch:style=Regular /usr/share/fonts/X11/Type1/c0611bt_.pfb: Courier 10 Pitch:style=Bold Italic /usr/local/share/fonts/Courier10PitchBT-Roman.otf: Courier 10 Pitch:style=Regular /usr/share/fonts/X11/Type1/c0582bt_.pfb: Courier 10 Pitch:style=Italic /usr/share/fonts/X11/Type1/c0583bt_.pfb: Courier 10 Pitch:style=Bold
otf（OpenType Font）
OTF vs. TTF Fonts: Which Is Better? What’s the Difference?
ttf（TrueType Font）