Choose the source
Your own photographs are the simplest starting point. For third-party images, check a written permission or a licence that covers the intended use.
Keep attribution together
Record the creator, source URL, licence and any changes. If a licence requires sharing adaptations on the same terms, keep those terms with the adapted file.
Do not infer permission
A brand name, public product page or downloadable picture is not by itself a licence. A site policy cannot grant rights belonging to another person.
Respond to concerns
If a rightsholder identifies a problem, use the private report channel to preserve evidence and request review. Moderators can hide the material while checking the issue.