Ghost lines when deleting a layer from a layer

Having a recurring problem in photoshop when selecting a layer and deleting it from the layer beneath...

Layer #1 is on top of layer #2....holding down the apple key and clicking on layer #1 to select everything in that layer, then deleting that selection from layer #2 underneath it....this always results with thin ghost lines of everything that was deleted...

How do you delete a layer from a layer and not get those thin outlines off what you just deleted?

It probably means that the edge of the layer you are trying to delete has a soft edge. If it has a hard edge, it shouldn't leave a ghost line.

You might also check that your selection tool has feather set to 0 and anti-alias set to off.

The easiest way to get round this problem is to just grab the layer in the layers pallet and drag it to the dustbin at the bottom of the layers pallet. That way you don't have to worry about what sort of edge the layer has.

zoezoner said:

Having a recurring problem in photoshop when selecting a layer and deleting it from the layer beneath...

Layer #1 is on top of layer #2....holding down the apple key and clicking on layer #1 to select everything in that layer, then deleting that selection from layer #2 underneath it....this always results with thin ghost lines of everything that was deleted...

How do you delete a layer from a layer and not get those thin outlines off what you just deleted?

Yeah, a problem which I ran into a lot of times too.
Here's a trick I sometimes use: with your selection active, go to Select>Modify>Contract and contract the selection by 1 or 2 pixels. Then delete the selection from the underneath layer. The 1pixel border difference is hardly (if even) noticeable, even on layers set to different modes or on semi-transparent layers.