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Format contents[edit | edit source]
- Raster layers
- Vector layers
Format history and limitations[edit | edit source]
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.
PSB format[edit | edit source]
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.