When combined, this string is a declarative instruction:

"Initialize a CID-keyed font resource named 'f1', applying the properties of standard weight (Normal), upright posture, and monospaced width (Fixed)."

In PostScript findfont/makefont:

/CIDFont /F1 0 /Norm /CIDFont findfont

This creates a fixed‑pitch CIDFont instance with normal direction.

In Ghostscript’s source file gs_cidfn.ps, you will find:

/CIDFont /F1 /Normal /Fixed

That is a built-in fallback for when no real CIDFont is available. It activates the “CIDFallback” mechanism with Normal registry/ordering.

Verdict: A utilitarian workhorse designed for mathematical precision and data integrity rather than aesthetic beauty. It is the unsung hero of the PDF standard, ensuring that what you see is exactly what was intended, character by character.