Photoshop Tip: How to move layers masks in Photoshop
Tips & Tutorials, by Mark White
January 30, 2012
This Photoshop tips reveals how to move layer masks without moving the contents
To move a mask but not the contents of the layer, click on the small chain link symbol in between the mask and the layer’s thumbnail.
With the Move tool, the mask can be dragged and repositioned to improve composition post-application of mask.