Creative Commons licenses permit naming author reuse.
According to the mentions (NC, ND, SA, BY), the conditions are not all the same. Here is a summary of the conditions.
There is also the :
- art libre license which gives extended rights, always naming the author.
- simplified Pixabay License
Most of these photos come from Wikimedia or Wikipedia. If you want to share your photos, Wikimedia is ideal for doing so globally. This media library contains more than 80,000,000 documents.