title: imagemagick resize to exact size
body: <p>It's question more about "know-how". I have a bunch of images of completely different sizes: one could be 360x360 and another 1200x800. And I would to make thumbnails for a webpage of exact size, for example 150x150. Because of different sizes I can't just use convert -resize or just crop it some way, I need both.
  How would you solve this?</p>