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PSD PSB
File conversion

Convert PSD to PSB

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Is it possible to convert PSD to PSB?
Yes - PSD converts to PSB.

PSB is the 'large document' sibling (same 8BPS signature, version 2). In Photoshop, Save As > Large Document Format to exceed PSD's 30,000 px / 2 GB limits.

2 programs
Also to PSB: SAI · PCX

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Tested on macOS, Windows & Linux
Last verified Oct 2026

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How to convert PSD to PSB

Converting a .PSD file to .PSB lets you open the content in software that prefers the .PSB format, though some details may change compared with the original. The programs listed below open .PSD files and can save or export them to .PSB (or a closely related format). One of them is Adobe Photoshop: Adobe Photoshop is a program which enables to create and edit raster, vector and 3D graphic. It is often utilised by professional photographers, designers,….

A full step-by-step guide for this conversion is on the way; the information above is drawn straight from our database.

Programs that convert PSD

Adobe Photoshop
Adobe Photoshop for Mac

About these formats

.PSD Adobe Photoshop Document

A PSD file is an Adobe Photoshop Document - the editable, layered working file behind an image, keeping every layer, mask, text and adjustment separate for further editing. Open it in Adobe…

Open .PSD details →
.PSB Adobe Photoshop Large Document Format (PSB)

A PSB file is a Photoshop document in the Large Document Format (Photoshop Big) - the same layered format as PSD but built for huge files up to 300,000 x 300,000 pixels and beyond 2 GB.…

Open .PSB details →