Format File Photoshop [upd]

★★★☆☆ – Useful if you work with iPhone photos, but convert to JPEG for sharing.

A "Large Document Format" used for extremely large images that exceed 30,000 pixels in any dimension or 2 GB in file size. Common Export Formats format file photoshop

These formats are your "master" files. They preserve everything you do in Photoshop—layers, masks, adjustment layers, and paths—allowing you to return and edit them later. ★★★☆☆ – Useful if you work with iPhone