Programmer's Guide > Programming and Scripting Techniques > Line Numbering in Arbortext Editor and Arbortext Publishing Engine > Applying Line Numbers
  
Applying Line Numbers
Arbortext Editor and Arbortext Publishing Engine provide a framework for building a custom application to add line numbers to XML documents. Line numbers and page numbers can be displayed in the Edit window as well as composed print output.
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Using line numbering with the Advanced Preference deepcontentsplitting set to on may produce unexpected results. It is recommended that you do not use line numbering with deepcontentsplitting enabled.