How to make images smaller in forum

Lol so I’m trying to post about an EP in the song forum and the image is ridiculously massivehttps://forum.renoise.com/t/takao-souvenirs-ep/43855

anyone give me a hand to make it look normal??

edit: figured it out in a rather roundabout way but any advice for the future would be great!

Almost any image software will let you do this.

Or you can use an online tool like this:http://picresize.com/