Adobe Creative Suite 4 is compatible with both Windows and Mac operating systems, according to Adobe. Adobe provides the necessary files for CS4 on its website with the option to choose the operating system involved. All Creative Suite downloads require a serial number to complete installation.
Adobe's Creative Suite 4 master collection provides the necessary tools to complete many design-related tasks, including Photoshop, Illustrator, Dreamweaver and After Effects. CS4 Web, Design and Production Premium are also available for purchase at Adobe.com. All Creative Suite licenses purchased in the past include licensing for only one operating system, but cross-grading is available at no charge, aside from normal shipping, on hard copies of the installation software.