PSD

File Format
Name	PSD
Ontology	Electronic File Formats Graphics PSD
Extension(s)	.psd

Overview

PSD is the file format used by Adobe in its Photoshop program line. The format has gone through multiple versions, each being downwards (but not always upwards) compatible

Resources

• Official specification by Adobe[1]
• Entry on fileformat.info[2]
• Open-Source PSD import code from GIMP[3]