If a PDF shows weird boxes or missing characters, use a tool like pdffonts (Linux/macOS) or Adobe Acrobat Pro to see which exact font is missing, then substitute it.
CIDFont F1, F2, and F3 are not specific downloadable fonts but rather generic placeholder names used by PDF software (like Adobe Acrobat or Illustrator) when it cannot find or decode the original embedded fonts. Why You See These Font Names
After installation, you need to tell your system or PDF reader that when a PDF requests "CIDFont+F1", it should use "Noto Sans CJK SC Regular".
Often refers to Arial Regular or a standard sans-serif font.
You rarely need a “repack.” You need the that /F1 refers to – and often it’s already embedded in the PDF.
If a PDF shows weird boxes or missing characters, use a tool like pdffonts (Linux/macOS) or Adobe Acrobat Pro to see which exact font is missing, then substitute it.
CIDFont F1, F2, and F3 are not specific downloadable fonts but rather generic placeholder names used by PDF software (like Adobe Acrobat or Illustrator) when it cannot find or decode the original embedded fonts. Why You See These Font Names
After installation, you need to tell your system or PDF reader that when a PDF requests "CIDFont+F1", it should use "Noto Sans CJK SC Regular".
Often refers to Arial Regular or a standard sans-serif font.
You rarely need a “repack.” You need the that /F1 refers to – and often it’s already embedded in the PDF.