Hi,
I found a way to change the screenshot format to HEIF on High Sierra and
wrote a Japanese article about it a few months ago.
https://zumuya.com/hitorigoto/180416_screenshot_HEIF
Here is the command:
defaults write com.apple.screencapture type heic
To reverse to default:
defaults delete com.apple.screencapture type
It is efficient since screenshots on Retina display is large and unlike JPEG,
this format keeps alpha channel with lossy compression so window shapes and shadows are not lost.
Now, I want to use "Lossless HEIF" which is available in Preview app export option.
Does anyone know how to change the compression quality of the screenshot?
If there is a way for JPEG, I suppose it also be appliable for HEIF.
I found a way to change the screenshot format to HEIF on High Sierra and
wrote a Japanese article about it a few months ago.
https://zumuya.com/hitorigoto/180416_screenshot_HEIF
Here is the command:
defaults write com.apple.screencapture type heic
To reverse to default:
defaults delete com.apple.screencapture type
It is efficient since screenshots on Retina display is large and unlike JPEG,
this format keeps alpha channel with lossy compression so window shapes and shadows are not lost.
Now, I want to use "Lossless HEIF" which is available in Preview app export option.
Does anyone know how to change the compression quality of the screenshot?
If there is a way for JPEG, I suppose it also be appliable for HEIF.