Guides

Fix a photo where it already is and save it with ⌘S: no Export sheet, no importing into Photos, and the original kept in case you change your mind.

Two free ways on a Mac: the one built into Finder for a quick cut-out, and Imaginator when you want to keep working on it. Nothing is uploaded either way.

Stories are 9:16, ideally 1080 × 1920. Here's how to crop to exactly that shape on a Mac, straighten it, and save it in one go.