Editing Images from Photos¶
To edit your image from Photos, select your image in the Photos browser and choose the Image ▸ Edit With ▸ Acorn menu item. If this is your second time using this command, pressing ⌘↩ (Command-Enter) will automatically choose Acorn as an editor again.
Once this menu item is used, Photos will then open up your image as a TIFF file in Acorn. You can edit, crop, add filters, and then save your image, and it will then be updated in Photos. You can close your image when you are finished.
To revert to a previous version of your image in Photos, you can use the Image ▸ Revert to Original menu item.