Replace transparency in PNG images with white background

Question

I\'ve got some PNG images with transparency, and I need to create versions with the image layer composed onto a white background. I\'ve tried various things with Image Magi

Answer 1

Flattening image and applying background image is straight forward in ImageMagick

However, order of the commands is very important

To apply any background on a transparent image and flatten it, first apply the background than flatten it. The reverse doesn't work.

$ convert sourceimage.png -background BackgroundColor -flatten destinationimage.png