:: https://stackoverflow.com/questions/47954470/drawbacks-of-using-flatten-option

:: Three ways to convert PNG with transparency to JPG.
:: Output images (that is, JPG files) will be binary identical.

:: 1st approach
:: convert google.png -flatten google_flatten.jpg

:: 2nd
:: convert google.png -background white -alpha background google_bg_white.png
:: convert google_bg_white.png -flatten google_bg_white_flatten.jpg

:: 3rd
:: convert google.png -background white -alpha remove google_alpharemoveoff.jpg