blend files and other data files Blender can write, is free for you to use as you like. That means thatBlender can be used commercially by artists, by studios to make animation films or VFX, by game artists to work on commercial games, by scientists for research, and by students in edu...
generally Blender is MUCH better tool for any kind of UV work with different auto options and control over where the edges of the map go on the model side note; what you also have to watch out for is assume objects are 3D just because the Pdf sh...