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The PSD format is Adobe's proprietary format for Photoshop documents.
- Raster layers
- Vector layers
Format history and limitationsEdit
Although the PSD format can be opened by all recent versions of Photoshop, newer versions have features and increased limits that may be troublesome for older versions.
More recent versions of Photoshop can make use of the PSB (Photoshop Big) format, which is mainly designed for the larger filesizes and more powerful processing available on 64-bit systems.