I see a lot of "free" stock imagery and vector graphics available on the Internet, but when I recommend such things for use on publications or websites, my clients ask me for printable licenses or any GPL/CreativeCommons declaration, but I find none on the websites themselves.
Do you have any idea whether such "free" graphics are usable for such media? Do I have to declare their source in publications or websites, if I use them outright?
- stock.exchange - photos
- vecteezy - vector art