Preparation

Creating a good document Index section is a difficult job performed by professionals. However, an automatically generated index still can be very helpful. Use automatic keywords or select your own keywords. This section will locate their pages, build a reference, and then create PDF pages that you can append to your document. It even uses your PDF's page labels (also known as logical page numbering) to ensure trouble-free lookup.
Download and install pdftotext, kw_index, and pdftk . You must also have enscript (Windows users visit http://gnuwin32.sf.net/packages/enscript.htm) and ps2pdf. ps2pdf comes with Ghostscript. The kw_index package includes the kw_catcher and page_refs programs (and source code) that we use in the following posts.