Free transform tool distorts images when adding to PS
I'm trying to place objects (pictures) of a very specific size in a Photoshop canvas - there are multiple images and they have to all be matched up so one big image can be generated from the pieces, so size and position is very important. But when I add the objects, they default-free transform to the constraints of whatever size the canvas is. I need it to work exactly the opposite - I want the object to retain it's exact size and dimensions, and I will resize the canvas as necessary (although I'd prefer if the canvas sized itself to the object, but I can live without that).
I don't quite remember older versions of PS working like this, so possibly a preference somewhere?
I've been dragging and dropping from a finder window (Mac OS). Maybe import would eliminate this problem?
