Cid Font F1 F2 F3 - F4 Better |best|

In PDF internal structures, fonts are referenced by names like F1 , F2 , etc. These are local aliases defined in the page resource dictionary. Commonly:

In the context of PDF files, , F2 , F3 , and F4 are not specific font "brands" you can download, but rather internal placeholder names generated by software during the PDF export process. cid font f1 f2 f3 f4 better