For Windows:

Pentium 166Hz or higher processor, 64MB or more of RAM, and 300MB or more of free HDD. For 16bit input and Auto Dust Brush function, the requirements will be Pentium 166Hz or higher processor (Pentium III or higher is recommended), 128MB or more of RAM (256MB or more is recommended), and 1.2GB or more of free HDD (2GB or more is recommended). Compatible OS are Windows 98, Windows 98 SE, Windows 2000 Professional, Windows Me, Windows XP Professional and Windows XP Home Edition.

For Mac:

PowerPC G3 or higher processor, 64MB or more of RAM excluding memory for applications and OS, and 300MB or more of free HDD are required. For 16bit input and Auto Dust Brush function, the requirement will be PowerPC G3 or higher processor (PowerPC G4 is recommended), 128MB or more of RAM excluding memory for applications and OS, (256MB or more is recommended), 1.2GB or more of free HDD (2GB or more is recommended).

Compatible OS are Mac OS 8.6 to 9.2.2, Mac OS X10.1.3 to 10.1.5, Mac OS X10.2.1 to 10.2.8 and Mac OS X10.3 to 10.3.1.