Envoy (by Tumbleweed Software Corporation), like Acrobat, enables the electronic distribution of formatted documents. Some people publish Envoy formatted documents to the internet. If you want to access these documents from the web, you must download a copy of the Envoy reader software to your desktop machine. This allows you to view documents on the internet exactly as they were designed, including any special fonts, graphics, and layouts. A plug-in for Envoy documents exists.
In computing, Envoy was a portable document file format marketed by Word Perfect Corporation, created as a competitor to Adobe Systems' Portable Document Format (PDF). It was introduced by Tumbleweed Communications Corporation in 1993 and shipped with Word Perfect Office in March 1994.