Background-problem with transparent PNGs

[max_bupa]

Can I fill the transparent background of a *png with background colour and save the image as a *webp without first having to go through other image formats (for example, converting to *jpg and then converting back to *webp ?

Is there a quick and direct way to do this?

[jamesgarcia]

Yes, In XnView MP you can do it directly—no need to convert to JPG first.

1. Open the PNG.
2. Go to Image → Alpha channel → Remove alpha channel.
3. When prompted, choose the background color you want (this fills the transparent areas).
4. Then File → Save As… and choose WebP.