I am attempting to find documentation of the psd file format so I can read in a .psd and then save out the individual layers as files, along with do other modifications. Doe
This will not be a fun project, the .psd format is big. It incorporates every feature Adobe has put into Photoshop over many years.
I believe the specification can be had from Adobe, but they don't just hand it out to the public. You'll have to contact them and jump through some hoops first.