Change my photo to have a black background

Hello dpher,

We would love to offer some great support articles that might help with this. Start off with this page that explains how to start with the best photo possible from your iPhone camera: Take great photos and videos - Apple Support. At the bottom of the article, it explains:

Add the final touches

After you take a photo or video, use the editing tools in the Photos app to make it even better. Open a photo or video, tap Edit, then tap the buttons at the bottom of the screen to adjust lighting, add a filter, crop, or rotate. As you make edits, tap the photo to compare your changes to the original.

You may also be able to find some great photos editing tools for your iPhone on the App Store, as explained here: Download apps and games on your iPhone or iPad - Apple Support.

We hope this helps. Let us know if we can assist with anything else at all. Take care.