Windows® • Adobe® Acrobat® 7.x, 8.x Standard or Professional • Microsoft® Windows® XP Professional or Home Edition • Microsoft® Windows® Vista Home Premium, Business or Ultimate (32-bit only) Macintosh® • Adobe® Acrobat® 7.x on PowerPC® Processor • Adobe® Acrobat® 8.x Professional (Universal) • Mac OS® X v.10.4.11 through 10.5.2 (Universal) • StuffIt Expander 10 or higher (for expansion of the installer package) New in update 2 • Adobe® Acrobat® 9 Pro or Standard • Mac OS® X v.10.4.11 through 10.5.4 (Universal) New in update 4 • Mac OS® X v.10.4.11 through 10.5.6 (Universal). Windows® • Adobe® Acrobat® 5.05, 6.x, 7.x • Microsoft® Windows® 2000 with service pack 4 • Microsoft® Windows® XP Professional or Home Edition Macintosh® • Mac OS® 9.x on PowerPC™ – Adobe® Acrobat® 5.05 • Mac OS X v.10.2.8, 10.3 or 10.4 – Adobe Acrobat 6.x, 7.x Hardware • Minimum 64 MB of RAM (128MB recommended) • 1.024x768 screen resolution Color Management To enable Color Management you must have a Color Management enabled operating system. Enfocus PitStop Professional is compatible with ICM on Microsoft® Windows® Windows® 2000, Windows® XP or higher and with Apple® ColorSync® 2.5 and higher on Mac OS.