Macintosh Picture

PCT is a graphics file format introduced on the original Apple Macintosh computer as its standard metafile format. It allows the interchange of graphics (both bitmapped and vector), and some limited text support, between Mac applications, and was the native graphics format of QuickDraw.

See the reference side-by-side comparison Common image file formats

	PCT
Developed by	Apple Computer
Year	1984
Pros	Best file format for on-screen display on the Macintosh Best printing format from the Macintosh to a non-PostScript printer
Cons	Fonts may be represented incorrectly when moved cross-platform QuickTime must be installed to view some PICT files correctly
Features
Vector graphics	Yes
Raster image	Yes
Lossless	Yes
Animation support	No
Transparency support	Yes
Layers support	Yes
HDR	No
Maximum bit depth	8-bit
CMYK support (for print)
Maximum number of channels	4
Commonly used for	Desktop publishing Paint Imaging applications using QuickDraw calls
Browser support (without plugin)
Google Chrome	No
Microsoft Edge	No
Safari	Yes
Firefox	No
Opera	No
Internet Explorer	No
Additional
File extensions	.pct .pict .pic
Wikipedia	https://en.wikipedia.org/wiki/PICT