The following is a sample Cidfont-f1 font file structure:

The Cidfont-f1 font was first introduced in the 1980s by Adobe Systems Incorporated as part of their PostScript font library. The CID font format was developed to support the growing need for Asian language fonts, which required large character sets and complex layout rules. Cidfont-f1 was one of the first CID fonts developed by Adobe and was designed to support the Chinese, Japanese, and Korean (CJK) languages.

font CIDFontF1 /FontType 0 def /Subtype /CIDFontType0 def /CIDSystemInfo 10 dict def /CIDSystemInfo begin /Registry (Adobe) def /Ordering (CJK) def /Supplement 0 def end def /FontDescriptor 20 dict def /FontDescriptor begin /FontName /CIDFontF1 def /FontType 1 def /PaintType 0 def /FontMatrix [1 0 0 1 0 0] def end def /Widths 250 dict def /Widths begin 0 0 100 200 300 400 500 600 700 800 900 1000 end def Note that this is a simplified example, and actual Cidfont-f1 font files may have a more complex structure.