This software is really amazing, there is no Malwares or Virus. I am using it to convert most of the photos taken in 4:6 to 16:9 so that the photo can look good on Youtube.
Found the ideal setting will be 1500 x 845 pixel under Advance Options. The photo do convert well but to a smaller size file in another folder so your original photo still stays in tact. Good enough to make a Youtube Video.
You have a look at the video I created in Backpacking East Malaysia Sabah and decide weather it is good enough.