These two scripts can help when building assets for iMessage sticker packs.
- Both scripts worked at the time I authored them, for my very specific needs (taking 1024x1024 PNG original art files, and resizing them on my MacBook).
- Both scripts use
convertwhich is installed as part of ImageMagik. https://apple.stackexchange.com/questions/335635/where-is-the-convert-command-in-macos - The AppStore requirements change frequently (as new devices are launched) and I've not updated these scripts in a very long time
Generates the icons required for the App Store
build_icons.sh should be run with a single parameter, which is the path to a 1024 x 1024 sized PNG file. It will generate the various icon sizes that the Apple Store wants.
Generates resized sticker assets.
resize.sh assumes that it's being run in a folder that has a subfolder, called 1024. Within the 1024 folder it expects to find 1024x1024 PNG files. It will then create 2 additional subfolders, filled with resized images.
Copyright 2020 Martin Peck
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