Hello,
on my website http://www.rentfactory.ch the pictures of the articles are not looking good, all to big. How can I change that, that all pictures have a good size?
You can try to change the Blog page design in the Theme Setting > Blog. If this is not what you mean, please provide page URL and screen with the problem.
I am afraid I do not understand your purpose. Do you want to make product pictures smaller? In this case, you need to increase the number of items in the row. You can do it in the Theme settings > Shop > Product grid.
the problem I have is not solved. I don’t know what I should do. The Preview is cutting the picture, but this I don’t like. I like that articles are fully visible and not cutted.