AniDB

If it is possible I like to have option in aom to downloading anime preview images.

You mean to have it download the images for all animes in one go? No sorry won't happen.

I mean some option to do it, because I'm using notebook whitch is not connect so inet usualy and thats problem when I want so look at something.
And reviewing all anime titles is too much

I'm very hesitant toward adding something like this since it's a quite large download that people will use just because "they can" (aka even if not needed).
Imagine, if each anime has a 50kb image it'd be a 80mb download. We might not be there today but I'm certain we'll be at that point in a year especially with how people make jpeg images that are twice the size needed (and still subpar in quality!).

If you want a true example check Sakura Taisens image, 100kb for 200x284 jpeg. I'll update it with a 30kb image that looks exactly the same to the naked eye later.

You got point there.
Anyway, thanks for answer.