HEIC and PNG explained
HEIC is the container Apple uses for photos taken on iPhone since iOS 11, holding images compressed with HEVC. It stores roughly the same visual quality as JPEG in about half the space, and can hold extras such as depth maps and Live Photo frames.
PNG is a lossless raster format built to replace GIF. It stores every pixel exactly as given and supports a full 8-bit alpha channel, which means genuine partial transparency rather than the single transparent colour GIF offers.
- Where HEIC files come from
- Every iPhone photo taken since 2017, unless the camera format was changed to “Most Compatible”.
- Where PNG is used
- Screenshots, exported logos and UI assets, and anything designed rather than photographed.