Here’s a helpful guide to understanding CID fonts and the roles of F1, F2, F3, F4 — especially in the context of PDFs, PostScript, and font substitution.
3. F3 (The Coder) – "Better" for Technical Data If you are printing source code, spreadsheets, or ASCII art, F3 is better. Its monospaced nature ensures columns align perfectly. Using a proportional font (F1) for a spreadsheet leads to formatting disaster. cid font f1 f2 f3 f4 better
If you are trying to edit text that currently uses these CID labels, you generally cannot "download" them. Instead, you should: Here’s a helpful guide to understanding CID fonts