How to See Hidden Layers of PSD File in Preview of Mac OS X
Solution 1:
Preview has very limited support for Photoshop documents (beyond viewing them) and can not change what layers are hidden and what layers are not in a Photoshop file.
However, there are different programs (image editors) you can use to view the Photoshop file if you don't own Photoshop:
- GIMP (Free and Open Source)
- Pixelmator (Not free but much nicer to use)
Solution 2:
GIMP is a good idea. You could also download a trial of some version of Photoshop (CS4 or elements) if you don't plan to make a habit of working with layered PSDs. I suggest this because I don't like GIMP, but it will do what you want.