Dr. Halo CUT

Readable

image

The Dr. Halo Bitmap file format, created by Media Cybernetics in 1984, was designed to facilitate image transfer between MS-DOS applications, making it one of the early device-independent bitmap formats. It is closely associated with the HALO Image File Format Library and software like the Dr. Halo raster graphics editor. The format primarily includes a .CUT file for bitmap image data and a .PAL file for color palette information. While initially popular in MS-DOS environments for basic graphic interchange, the Dr. Halo format was eventually superseded by more versatile formats as personal computing advanced.

Identify it

Extensions	`.cut`
MIME types	`application/dr-haloimage/x-cut`
PRONOM	`x-fmt/316`
Wikidata	`Q28205948`

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Open it

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ImageMagickOpen sourcereads · ImageMagick License
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PicaJetreads · freeware
Q650922reads · freeware / proprietary license

Convert it

To	With	Fidelity	Command and losses
PNG	ImageMagick	Lossless	`convert in.cut out.png` Pixels kept; some metadata, colour profiles or layers may be dropped.
TIFF	ImageMagick	Lossless	`convert in.cut out.tif` Pixels kept; some metadata, colour profiles or layers may be dropped.
GIF 89a	ImageMagick	Lossy	`convert in.cut out.gif` Reduced to 256 colours.
JFIF 1.02	ImageMagick	Lossy	`convert in.cut out.jpg` Lossy compression.
WebP	ImageMagick	Lossy	`convert in.cut out.webp` Lossy compression.

Sources

From Converters (FFmpeg, ImageMagick, Pandoc, LibreOffice), Just Solve the File Format Problem (File Formats Wiki), PRONOM, Wikidata. Updated 2026-10-26.

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