I'm looking for a java library to work with PSD format(Photoshop). Any ideas?
Probably very late, but as this page is pretty high ranked on google when searching "java psd library" I'll share my experience.
-As Boris said the java-psd-library is read only. It has trouble reading recent CS4 format. If you ever find yourself with an error opening a psd file, opening it in Gimp 2.8 and saving it again will probably fix the issue.
-As I needed to work on layered graphic files, I took time to search for an alternative. The PSD format is proprietary and access to specs seems restricted. I found that the OpenRaster format is a pretty good alternative : http://en.wikipedia.org/wiki/OpenRaster It has open specs and it's really simple. It's a zipped file containing layers as png and a descriptor file. Gimp handles this format quite well and it's easy to export a psd file to an ora file. You can find some Java tools to manipulate them. It's a part of a more vast project which is still in Alpha : https://code.google.com/p/mediaz/
Hope it'll help people.