Images can be cropped from within the Custom Content platform. To open the cropping editor, click on the "crop" button on the detail page.
Within the editor, you can free-form the crop, enter a custom crop size or use any of the available pre-set sizes.
Once you find the crop and position to your liking, click on the "Apply" button on the upper left to apply the crop.
Applying the crop itself does not count as a download and you can reset and utilize cropping as many times as you like.
Once the crop is applied, you will see the new crop size on the detail page with a message that the image has been cropped. This can also be reset from the detail page.
From the gallery page, you'll also see a new icon representing if the image has been cropped.
The download of a cropped image will include a zip file of the cropped image and the original full-size image. Once the image has been downloaded, it can still be re-cropped and re-downloaded without counting against your download cap.