PSB

File Format
Name	PSB
Ontology	Electronic File Formats Graphics PSB
Extension(s)	.psb
Released	2003

PSB (Photoshop's Large Document Format) is an image file format supported by Adobe Photoshop CS and later versions of Photoshop. It is a companion format to PSD. PSB supports larger image sizes (up to 300,000×300,000 pixels), and increases various other limits. PSB is nearly identical to PSD, except that some fields are larger.

Identification

PSB files begin with bytes '8' 'B' 'P' 'S' 0x00 0x02.

Specifications

• Adobe Photoshop File Formats Specification

Software

• Adobe Photoshop
• ImageMagick
• Konvertor
• XnView