It is true. You can copy and paste a picture into microsoft paint, using either the right click task bar or Ctrl c-ctrl v, you can then adjust the image to the desired size.
The least common multiple (LCM) of 78, 90, and 140 is: 16,380
78 × 210 = 16,380
90 × 182 = 16,380
140 × 117 = 16,380