From Paragon Software Group:
You may ask, "Why would I ever need to resize volumes on my Mac?" It's only a matter of time until one of the volumes becomes overfilled with data and you'll need to free up some disk space. It's likely that the necessary space will be located on an adjacent partition that contains another operating system and, just like that, you'll need to resize both of the volumes to add some free space to one of them. Paragon Camptune X is a simple and fast way to perform resize operations. Instead of spending your time juggling with archives, disks and applications, use it to do something more creative with your Mac.