A Bash shell script to strip metadata from Android PNG resources.

strip_android_png_metadata.sh

#!/bin/bash

#
# Get rid of 'libpng warning: iCCP: Not recognizing known sRGB profile that has been edited' compilation warnings
# from AAPT by running this Bash shell script in the root folder of your Android project. This will use exiftool
# to remove PNG metadata (created by tools like Photoshop) from your Android project's PNG resources.
#
# NOTE: exiftool needs to be installed and in your path. Install it using homebrew or some other method.
#

command -v exiftool >/dev/null 2>&1 || { echo >&2 "exiftool is required but is not installed. Try installing exiftool with homebrew. Aborting."; exit 1; }

find . -regex '.*/src/main/res/.*png' -exec exiftool -overwrite_original -all= {} \;