I'm no computer geek , but my IT guy at work set up this
https://tinyjpg.com/ for me. I drag the picture in to get compressed download and then just attach it on the site. But that's all I know, and your probably going to say, ya thanks dummy cause your not even asking that question. But if it helps that will be two things I can do, fart and get pictures on this site.
While I'm good at the first one anyway.