Skip to main content

Apple Developer Docs

Fonts Symbols

Image I/O / kCGImagePropertyJFIFXDensity

Contents

Declaration
See Also

kCGImagePropertyJFIFXDensity

The x pixel density.

Declaration

let kCGImagePropertyJFIFXDensity: CFString

See Also

Quality Information

kCGImagePropertyJFIFYDensity
kCGImagePropertyJFIFDensityUnit
kCGImagePropertyJFIFIsProgressive

Open on developer.apple.com

Image I/OGlobal Variable

iOS 4.0+iPadOS 4.0+Mac Catalyst 13.1+macOS 10.4+tvOS 9.0+visionOS 1.0+watchOS 2.0+

Declaration
See Also

Built on 2026-05-07