OK, let me put it another way.
Before dragging your pixels to the 'sticker' document, (so after resizing), Ctrl + CLICK the layer THUMBNAIL in the layer's panel...
[ATTACH]72973[/ATTACH]
This will create a marquee, (marching ants), that encompasses ALL the opaque pixels on that layer.
An opaque pixel here is defined as ANY pixel with an opacity greater than zero.
Now, drag, from the rulers, a vertical guide line to the leftmost edge of the marquee.
Drag another guide to the rightmost edge of the marquee.
If you now measure between these two guides do you get the same dimensions as after dragging the image into your other document?
I'm willing to bet it is....and that it differs from the canvas size by the same error.
Using my image above as an example the Orange part denotes the entire canvas/layer, the Purple part the boundary of the opaque pixels on that layer...
[ATTACH]72974[/ATTACH]
When you 'drag' from a layer it's ONLY the Purple part that moves...the opaque pixels.
The 'less than an inch' difference you see is effectively the Orange part.
In short, don't confuse the canvas/layer size, in Px, with the width of 'opaque' pixels on a layer. They are not necessarily the same....and dragging a layer to another document ONLY drags those opaque pixels.
Regards.
MrToM.
