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1 Introduction
**************

GNU 'roff' (or 'groff') is a programming system for typesetting
documents.  It is highly flexible and has been used extensively for over
thirty years.

* Menu:

* Background::
* What Is groff??::
* groff Capabilities::
* Macro Package Intro::
* Preprocessor Intro::
* Output Device Intro::
* Conventions Used in This Manual::
* Installation::
* Credits::