Recent LibO has a cropping tool in the draw/impress components that shows some issues and misses some features.

Specifically:

1) The graphical cropping tool lets one select and move handles to adjust a rectangle around the part of the image that is to be kept, while all that is external to the rectangle is cropped. Unfortunately, when pulling the handles, the rectangle adjusts in a way that is inconsistent with the final result. For instance, if you lower the top handle, instead of having just the top side of the rectangle moving down, all the sides of the rectangle move (apparently keeping the form factor). Then, when you release the handle you finally discover that just the top side was adjusted.

2) Looks like it is not possible in any way to manually enter or check the cropping values. Historically, LibO/OO had this ability, so we have a regression. Incidentally, the ability to always inspect/adjust all the numerical quantities affecting the drawing has so far been a precious feature of LibO, setting above other commercial competitors.

This ability is important in some cases. For instance: assume that you need to import two graphs and that they have to be cropped in identical ways on top, otherwise you loose consistency. With the current LibO you need to edit them in an external tool to be sure of the result. With previous versions of LibO you could visually crop one graph and then numerically enter the same top crop info in the second.