image-processing.txt
My <stack> app on <host> accepts image uploads and needs thumbnails and
web-sized versions.

- Which image libraries this host has available, and how to check.
- Resizing on upload vs when first requested. Pick one for my setup.
- Fixing phone photos that come out sideways.
- Stripping location data and other metadata by default.
- Output format and quality settings that keep files small.
- Staying inside this host's memory limit. Big photos can exhaust it.

Show me the code and where the resized files are stored.

A 12-megapixel photo needs far more memory to resize than its file size suggests. Test with the biggest image your users could send, not a sample.