Making pics appear skinnier and aftter

[tamxxx]

heya does anyone know what kind of software i need to download, so that I can make pics look really skinny or really fat?

[Medley]

I'm afraid I don't understand the question. Do you wish to alter the size of the image itself, or the alter the size of the subjects within the image? Either way, it can be done in Photoshop without need of further software. That is, of course, presuming you own a copy of Photoshop.

-Medley.

[Phate]

you can transform bitmaps in MSPaint as well.