Cid Font F1 Family Hot !full!

Do not assume the font name is "F1." That is often an alias. Use a tool to inspect the PDF:

is simply the first font listed in a document's internal resource list, it can represent different actual fonts depending on the software that generated the file. Commonly, it maps to: Arial (Bold) cid font f1 family hot

The delivers all three. It tells the audience: This is data. This is speed. This is serious. Do not assume the font name is "F1