– avoid “free font” sites with dubious EXE files.
Since you cannot download a "CIDFont F1" installer, you must identify the font it represents to fix your document: CID+ Fonts - Adobe Community – avoid “free font” sites with dubious EXE files
mplus-fonts.osdn.jp Quality: ★★★☆☆ (Best for coding and UI) | Install this
Go to GitHub – Source Han Sans and Source Han Serif . Font Squirrel
| If you see... | Install this... | | :--- | :--- | | F1, F2 (Sans-serif) | Noto Sans CJK / Source Han Sans | | F3, F4 (Serif) | Noto Serif CJK / Source Han Serif | | F5, F6, F7 (Mixed) | IPAmj Font or Noto Sans CJK (Full pack) |
: Opening the PDF in macOS Preview and using Export as PDF can sometimes flatten the fonts or re-embed them correctly, making the file usable in other editors.
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