Users have uploaded full suite installers that include Illustrator CS6, such as Adobe Design Standard CS6 and Adobe CS6 Design Web Premium.
Technically, downloading copyrighted commercial software without a license violates Adobe's Terms of Service and copyright law. Archive.org hosts these files under digital preservation paradigms, but that does not automatically grant individual users a free license to use commercial software for profit. The Activation Dilemma adobe illustrator cs6 archive.org