We have a copyright check system in place that includes an automated reverse image search as well as manual checks conducted by our curation team. We have a process in place for contacting users who have uploaded content that may not be theirs and for removing that content from the site when necessary.
If you have specific copyright-related concerns or questions about a particular photo or video on Pexels, you can reach out to our customer support team at info@pexels.com.