A very specific request!
Use the Preflight tool → "List all fonts" → Find Cidfont-f* → Embed or replace with a standard font. Cidfont-f1 F2 F3 F4 F5 F6
The base “Cidfont-f1” refers to the and character mapping table (CMAP). It uses a fixed cell matrix for predictable rendering on low-resolution or high-contrast screens. The “f” stands for form or function layer , and the numeral indicates the variant specification . A very specific request
