Blog Image Optimizer script

optimize_images.sh

#!/bin/bash

# 1. Define the target width for your blog (e.g., 1600px)
WIDTH=1600

# 2. Loop through all HEIC files (case-insensitive)
for file in *.[hH][eE][iI][cC]; do
    # Check if files actually exist to avoid errors
    [ -e "$file" ] || continue

    # 3. Create a clean filename (e.g., IMG_123.jpg)
    filename="${file%.*}"
    output_name="${filename}.jpg"

    echo "Processing $file..."

    # 4. Convert and Resize using 'sips'
    # -s format: sets output to jpeg
    # -Z: maintains aspect ratio and sets max dimension
    sips -s format jpeg -Z $WIDTH "$file" --out "$output_name"

    echo "Created $output_name"
done

echo "Done! Your web-ready images are ready."