The dimensions of components in PCB are physical dimensions, so don't change them casually. Because of the change, it is not easy to place components in actual welding.

Of course, it has been arranged according to the original size, and the position of the components is fixed, which does not affect the welding. You can change the size, but try not to do so.

To change the component size, you need to enter the editing state of PCB component library and modify the component outline, that is, draw with the top character layer. The pad position and size of the component pin cannot be changed.

After modification, only PCB components need to be saved and updated.