lower size of images

[Agustin]

How can I lower the file size of say... the sunflares png's that come within scatterer so my pc can run faster? I know that the more big these files are, my game runs worse, so I am trying to lower the resolution or the filesize of these image (being PNGs for now) and really don't know how can I do that. Say there is an image that weights like 1 Mb, and it's such an easy image I know I can live with a lower resolution and leave room in my GPU... so.. any help would be great.

Edited February 3, 2018 by Agustin

[sebi.zzr]

47 minutes ago, Agustin said:

any help would be great

Why you don't lower texture and render quality in settings?

[Agustin]

because that just lowers every texture and I don't want that. I just want to do it carelessly.. I think that windos paint allowed e to do it. Just lowered those files I entioned, but will continue to do it with carefull selection...