Is there a tool which allows for the manipulation of images to appear thinner or thicker/wider? [I understand in the regular photoshop its called to "liquify"?]
There are a couple different options related to this,
1) The Move Tool allows you to transform the content in a current selection or entire layer, you would want to uncheck the constrain proportion option (chain link) at the bottom and then use the frame handles to distort the width or height
2) The Warp option allows you to move a grid layout of handles over the image to warp the appearance similiar to liquify
I'll show examples with screen shots (click images to view larger)
Thank you very much.
Sent from my iPad @ Cow Hollow