Photos.app: know whether you grabbed a master or a cloud placeholder
Users often confuse dragging thumbnails, sharing edited renders, and File ▸ Export ▸ Export Unmodified Original. `mac-photos-export-jpg` is for handing event coverage to design, legal, or Windows-heavy teams: standardize JPEG quality, long edge, whether GPS stays embedded, and caption fields for compliance. With Optimize Mac Storage, Finder may hold a tiny proxy while the full HEIC lives in iCloud—download originals before any online conversion or you will transcode a blurry surrogate. Batch converters help enforce naming and size caps, but always diff a few exports against true unmodified originals to ensure the pipeline did not mix in screenshots or chat-forwarded derivatives.
Mac Photos handoff
- Before `mac-photos-export-jpg`, download full-resolution originals from iCloud.
- Decide which EXIF fields survive and whether location data is allowed outbound.
- Compare a handful of outputs to unmodified exports for tone and resolution.