Hi, when I export my image with the print screen button, all the ligthing settings change and it comes out darker on the png and it changes in enscape to. See the photos attach.
Odd - maybe an auto exposure issues but it could be your lighting setup. Honestly there isn’t enough information here to provide solid support.
It could be many things but it looks like it your lighting setup. In both viewport previews there isn’t enough light. Your before image looks like auto exposure trying to balance the image and/or the settings are set low. The after preview looks closer to your end result as contact shadows are present and the overall values are the same.
Based off what you are provide i think its a lighting issue. Can you share the lighting from the model?