Size your image
Crop your image to the best size for your use case. Take advantage of built in preset sizes. For example, to size an image for an Instagram Story, tap the Crop tool, tap Instagram, and choose Story.
Choose an Export option
When you’re ready to share your image, tap the Share icon. Tap Quick Export as PNG for an instant export without a lot of options. Or tap Export for a choice of file formats.
Choose a file format
If you tap the Export option, you can choose the best format for your intended use. Tap JPEG or PNG for online use. JPEG is best for a photo; PNG for an image with transparent areas. If you want a layered copy of your image for further editing on another platform, tap PSD or TIFF. Some formats offer more options to choose from, like the Quality setting for a JPEG.
Export
Finish by tapping Export and choosing the destination for your file. If you just want to save to your camera roll, tap Save Image.
If you need copies in other formats, you can always export again in a different format.