This function has not been fully integrated into the long-term Mathematica system, and is subject to change.

is an option for notebooks that specifies whether a horizontal line is inserted at the top of each page when the notebook is printed.


  • is specified as a list of two elements, one each for the left and right pages. With the default setting PageHeaderLines->{True, True}, both left and right pages are printed with a horizontal line on top, below the page header.
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