Transparent png shadows are filled
When I store transparent images with shadows as .png I have filled areas instead of soft edges. It seems like it is a saving/compression or whatever problem because the .psd is in photoshop really fine and the same .psd worked for a transparent when he created the transparent .png.
This is how it looks as .png: http://puu.sh/gZdrh/8b8fc16424.jpg
This is how it looks in photoshop (red background):
What is causing this problem? It's a RGB / 8bit .psd
Blending modes do not translate to PNG images. I would guess that you've se the shadow to
Multiply within Photoshop.
Your shadows need to be set to
Normal for the blending mode. This may mean you need to better mask the shadow layer or remove the shadow entirely and recreate it without the white areas.