|top| - Cid Font F1 F2 F3 F4

Instead of mapping a character directly to a keyboard keystroke or a basic character code, a CID font references a global registry of glyphs.

The next time you see a PDF error complaining about F1 , you will know exactly what it means: The document is looking for its first Character Identifier font, and it cannot find the glyph outlines required to print or display the text. cid font f1 f2 f3 f4