"F1" through "F4" are generic placeholders generated by the PDF exporter to represent different weights or styles (e.g., F1 might be Arial Bold Arial Regular CID Encoding:

Feeling a pang of guilt, Emma realized that she might have inadvertently supported piracy. She decided to visit the official website and purchase a legitimate license for the fonts. To her surprise, the type foundry offered a free trial version of the fonts, which Emma had likely downloaded initially.

After completing the survey, Emma was redirected to a page with a download link. She clicked on it, and a zip file containing the CID Font F1 F2 F3 F4 package began to download. Emma extracted the files and explored the font collection. She was thrilled to find that the fonts were indeed high-quality and compatible with her design software.

sudo apt install fonts-noto-cjk