If Adobe distributes Photoshop and the plugin together they will likely be violating the GPL (see the GPL FAQ). I think it's only OK to use GPL plugins in non-G

If Adobe distributes Photoshop and the plugin together they will likely be violating the GPL (see the GPL FAQ). I think it's only OK to use GPL plugins in non-GPL software if the GPL plugins are distributed separately by a third party (but then again I'm not a laywer).