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The PSD format is Adobe's proprietary format for Photoshop documents.

Format contents[edit | edit source]

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.

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