For Windows
21 day free trial
Requires Windows 2000, XP, Vista or 7.
Plugin support for Adobe Photoshop versions 7, CS, CS2, CS3, CS4 and CS5 in both 32- and 64-bit, Photoshop Elements version 5 and later, and Corel Paint Shop Pro X2, X3 and later.
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For Mac
21 day free trial
Requires Mac OS X 10.5 (Leopard) or later on Intel 32- or 64-bit architecture.
Plugin support for Adobe Photoshop versions 7, CS, CS2, CS3, CS4 and CS5 in both 32- and 64-bit, and Photoshop Elements version 5 and later. PowerPC users should use version 2.3.0, Mac OS X 10.4 (Tiger) users 2.2.2.
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For Linux
Free
Includes source, distributed under GPLv2 license.
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