Adobe InDesign CS is the 3rd major version of the InDesign page layout application, which was also included as part of Adobe Creative Suite 1.
InDesign CS was released on October 28, 2003. It included tools and features to help migrate users from QuarkXPress and Adobe PageMaker 6.5, which it was planned to eventually replace.
In January 2004, a "PageMaker Edition" was released to help facilitate migration from PageMaker 6 through 7. The PageMaker Plug-in Pack was also available separately for existing users.