I hope someone can help.

I can add decals by dragging and dropping my image (.png) on to the model.

But if I drag an image that was a transparent background then Solidworks renders it as black.

Secondly, if I add a decal from the default selection it gives me a number of options on the lefthand side. But if I drag and drop I get no options?

I just need the background transparent and to manipulate the image so that it fits my model.

Thanks for your time and help