White halo around text in Photoshop with transparent background
There is a white halo around my type and line when I save it as a transparent png. There is no halo in Photoshop. 
There is a white halo around my type and line when I save it as a transparent png. There is no halo in Photoshop. 
Can we see your settings how you made the .png, and how you composited against the background.
In CC2018 I used file >> export >> export as
then opened the .png and pasted in a background (of lovely Naperthrill which I am familiar with living in Homer Glen)

What version are you using? Maybe you did a save for web with matte set to the default of white. Change that to none.

The purpose of matte is to help put the background color into mostly the diagonal pixels that are aliasing to give you a crisp edge.
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