Since CS6 is no longer sold, Adobe offers it only to existing license holders via their Creative Cloud desktop app.

While the convenience of a portable app is undeniable, downloading a "Portable" version of Adobe InDesign CS6 from the internet poses severe risks. It is crucial to understand these risks before clicking any download button.

Beyond the technical risks, there is the legal reality. Adobe InDesign is proprietary software. Downloading a "Portable" version implies that the software has been cracked to bypass activation.