In software terms, a "portable" application is a version of a program modified to run without a traditional installation process. How Portable Software Works
The magic was the Portable part. A former IT guy had stripped PageMaker 7.0 down to its bones, removed the registry demands, and bundled it into a single folder on a USB stick. No installation. No license checks. Just an .exe file that, when clicked, resurrected a design tool from the era of beige computers and Zip drives.
It shipped with hundreds of professionally designed templates for brochures, newsletters, and business cards.