If you are seeing errors about CIDFont F1, F2, F3, F4, F5, or F6
The topic "CIDFont F1...F6 install" usually arises from error messages in (specifically versions like Acrobat 7, 8, and X) when opening, printing, or flattening PDF files. The "F" series (F1, F2, F3, F4, F5, F6) are placeholder names for generic CIDFonts used by the PDF specification to represent CJK (Chinese, Japanese, Korean) text encoding. cidfont f1 f2 f3 f4 f5 f6 install
# Debian/Ubuntu sudo apt install fonts-noto-cjk If you are seeing errors about CIDFont F1,
| PDF Internal Name | CIDSystemInfo Ordering | Installed Font | |------------------|------------------------|----------------| | F1 | GB1 | NotoSansCJKsc | | F2 | CNS1 | NotoSansCJKtc | | F3 | Japan1 | NotoSansCJKjp | | F4 | Korea1 | NotoSansCJKkr | | F5 | Identity | NotoSansMonoCJK | | F6 | (none) | Arial Unicode MS| and X) when opening
Or simply open your problem PDF and check if the "missing font" error disappears.