I have a TIFF File that has a blue background and an Alpha Channel. I would like to save a PNG File which has the blue background transparent, using the Alpha Channel (because some pixels are not fully transparent)
I use Photoshop CS5 Standard, but I haven't found an option there. I don't want to use the Magic Wand because it struggles with half-transparent pixels and because I do have a perfect Alpha Channel.
Any ideas how this can be done?