Take a psd and export all the layers into separate image files without using Photoshop

This is my first question here and I'm not sure if this is the appropriate site for my question, but here it goes. If this is not the correct site, please direct me to the correct one.

I have a psd file. I simply want to extract the layers from it into separate image files. I do not have Photoshop and I've already used up the free Photoshop trial.

I am running Mountain Lion on a MacBook Pro. I have installed Gimp, but I can't figure out how to do what I want. I have searched using Google, but have been completely unable to find a tutorial showing me how to do this.

I would really appreciate instructions or a link to an appropriate tutorial. I have seen some answers here, but they simply say use Gimp, which doesn't help me.

Answer

If you don't want to install any plugin, do this using GIMP (open source tool):

1. Select the layer and copy Ctrl+C or Edit > Copy


2. Then Select > File > Create > From Clipboard, this creates a new document from the copied layer, or you can just make the layer you want the only thing visible.


3. Then select > File > Save As... then go down to "Select File Type (By Extension)"


4. In the box where it says "All images select that box and go down to "PNG image (*.png)"