PSB File Extension - Open .PSB files

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Common File Extensions

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.PSB File Extension

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File Type

Photoshop Large Document Format

Popularity

Average

Category

Raster Image Files

File Description

Format used for saving large Photoshop documents over 30,000 by 30,000 pixels in size; supports images up to 300,000 by 300,000 pixels; to enable .psb support, check the "Enable Large Document Format" within the File Handling pane of the Photoshop Preferences window

Program(s) that open psb files

Mac OS

Adobe Photoshop CS4

Windows

Adobe Photoshop CS4