Cidfont F1 Normal Fixed !!top!!

For real CJK fonts, this is often true for monospaced fonts (like MS Gothic, ＭＳ ゴシック ). But many proportional Japanese fonts (like Heisei Mincho ) have variable widths. Specifying Fixed forces the PDF interpreter to ignore the font’s internal widths and use a single width – typically 1000 em units or the /DW (default width) value.

Thus, F1 is simply a . In one document, /F1 might point to a CID-keyed Japanese font; in another, to a simple Latin font. However, the combination cidfont f1 tells us: “The resource named F1 is a CIDFont object.” cidfont f1 normal fixed

This string represents a specific configuration for a (a font format used for large character sets, often for Chinese, Japanese, or Korean languages). It dictates that the font named "f1" should be rendered with a standard weight, upright posture, and a fixed (monospaced) width. For real CJK fonts, this is often true