For continued use of Adobe products, consider modern alternatives like Adobe Creative Cloud or Photoshop Elements , which do not require the obsolete activation servers.
: Adobe has removed CS4 from public download servers. Users must typically have their original physical media (DVDs) and a valid serial number to reinstall the software. Adobe cs4 license manager 1.0 download free
Are you trying to on an existing CS4 installation, or How do I download the adobe cs4 suite? | Community For continued use of Adobe products, consider modern