UVPackmaster 2 is an efficient UV packing engine available as a command line tool. Its robustness comes not only from the fact that it was written in C++ and runs as a multi-threaded application – it also provides a packing algorithm for Cuda-enabled GPUs (what gives a significant boost). In fact, it can perform some packing operations on all devices simultaneously: CPU and all GPUs in the system.
Is the file safe?
I have been running this site from last 5-6 years. Of course this is safe!