Automatically removing widows and orphans with lua-widow-control

The lua-widow-control package, for plain LuaTEX/ LuaL A TEX/ConTEXt/OpTEX, removes widows and orphans without any user intervention. Using the power of LuaTEX, it does so without stretching any glue or shortening any pages or columns. Instead, lua-widow-control automatically lengthens a paragraph on a page or column where a widow or orphan would otherwise occur. To use lua-widow-control , all that most users need do is place \usepackage{lua-widow-control} in their preamble. No further changes are required.