Canvas is a graphics application for Atari ST computers. It has several associated graphics file formats, including:
- Compact Picture Format (.CPT)
- Compact Picture Format Hue Balance info? (.HBL)
- FullPic Picture Format (.FUL)
- Canvas Picture Format (.CNV)
- IMG Picture Format (.IMG)
- Palette Format (.PAL)
.cpt can be converted on their own. If a corresponding .hbl file is present, then additional information in the .hbl file produces a picture with better colors.