Browse - Computer Tips - What is a .PSB file?

Date: 2014jul24
Product: Adobe Photoshop

Q.  What is a .PSB file?

A.  Its an Adobe Photoshop image file.
Regular Photoshop files have .PSD extension.
PSB = Photoshop Big and can support 300,000 x 300,000 pixels.
Apparently they load faster too.
First released in Photoshop CS 1.
There is a preferences setting to enable it.
Photoshop will continue to support .PSD.