Manual per-instance cropping I have tested tried out a couple of image-cropping modules listed here. None of them seemed to meet my expectation, but chances are I was doing something wrong. That's why I'm looking for your experience.

What I want is to enable the admin-to-be to manually select the area and crop uploaded images to a square based. I don't want to rely on automatic scale-and-crop effect provided by Drupal as it may trim the image inappropriately. So, I'd expect the module to offer a per-instance cropping.

Has anyone encountered that kind of capabilities?
The Manual Crop module does the best job.

To quote the project page:


  The Manual Crop module exposes a set of image style effects that
  enables users, if enabled in the widget settings, to crop (and scale)
  an image after uploading.


Essentially this means you can choose a different crop area for each image style used.