I want to submit photos to Pexels, what's the process?
Where can I upload my own photos?
Create an account here: https://www.pexels.com/submit-photos/. All photos you upload will be released under the CC0 license.
However, www.pexels.com is different in a number of key aspects. The pictures are free for personal and commercial use. You can modify, copy and distribute the photos without even setting a link to the source.