CPI
From Just Solve the File Format Problem
- For other "CPI" formats, see: Blu-ray Clip info, CPI (ColorLab), Marco Pixel Editor, Cartesian Perceptual Compression.
CPI is a font (or at least font-related) file format associated with MS-DOS.
FreeDOS also supports CPX files in addition to CPI; they are CPI files compressed with UPX as if they were COM files.
See also DRFONT, for a variant used by DR-DOS.
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Discussion
A CPI file typically contains fonts from a single typeface, with support for multiple code pages, each rendered at multiple font sizes.
A CPI file usually contains either screen fonts, or printer fonts. A printer font can be just the instructions used to select a font that is built into the printer, or it can be actual font data to be sent to the printer.
Identification
CPI files begin with 0xff "FONT ", or 0xff "FONT.NT".
Specifications
- CPI file format, by John Elliott
- The cpi.txt file from PSF Tools (doc/cpi.txt in the source code).
- CPI file format in Ralf Brown's: #01758, #01759, #01760, #01761, #01762, #01763, #01764, #01765
Software
- PSF Tools
- cpi2psf, psfs2cpi - Read, write
- cpicomp, cpidcomp - Compress, decompress
- cpitest - Dump information about the file (not normally installed)
- Deark
Sample files
- DOS5FIX.ZIP → *.CPI
- TEXTFONT.ZIP → *.CPI
- MS-DOS 3.30, at WinWorld → "Microsoft MS-DOS 3.30 (5.25-360k)" → ... → *.CPI
- Some CPX samples: [1]