How to set PNG transparency color?

[Miguel]

Hi, but how I could resize many png images?... Change format to png with change image size losing transparency

[kx]

(PNG can have either single color transparency or alpha transparency)

Is it possible to set alpha transparency of some area of the image in 32-bit color mode?

[GeorgD]

Yes, right, i'll try to add it in the 1.90

Thanks for the button "set transparency color" in export dialog Works fine.

[CoDEmanX]

is there a "set transparency color" in the batch converter?

[xnview]

is there a "set transparency color" in the batch converter?

You have an option in option/Write/PNG

[Gitchev]

Hi, I am trying to convert from EPS to PNG with transparent background. The transparent color should be white 255. In Options > Write > PNG I set 255 and in Read I check the Compose image with transparency. Unfortunately I still cant receive the PNGs with transparent background. Any ideas? Thank you

[XnTriq]

Welcome to the forum, Gitchev (-:

Did you reduce the color depth of the converted file prior to saving it?

PS: Recommended settings