adobe photoshop
for glow effect use brush opacity 20% hardness 0 then circle should be big to slowly small How do u paste in the same layer? You can't. Pasting will automatically happen in a new layer. What you could do is paste it, position the content where you want it, then select both layers in the layer palette and merge them (Ctrl-E on PC, Cmd-E on Mac). nah this dude nailed it ( drag it while holding alt)