File formats in Adobe Photoshop
Feb 23, 2022 · The Large Document Format (PSB) supports documents up to 300,000 pixels in any dimension. All Photoshop features, such as layers, effects, and filters, are supported. (With documents larger than 30,000 pixels in width or height, some plug-in filters are unavailable.) You can save HDR, 32-bits-per-channel images as PSB files.
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