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Is there an easy way to crop jpeg images to aspect ratio 2:3? Of course, it can be handled with gimp but then one needs to keep eye on aspect ratio all the time. I would prefer something where I could lock it to 2:3 and just choose the size and placement.
Should be pretty easy to write as plugin for gimp I suppose.
Imagemagick... How do you mean I could use it? Sure, it has a crop function but it seems to be a command-line way of doing it only. I would like to be able to select the size and placement of the selection interactively, just to keep the aspect ratio fixed.