Hello I am trying to do an index analysis of a thick manual of 2000 pages made with InDesign CS6. The Indian service he had done the previous edition adopted a particular system. Once exported paginated PDF of the chapter, beside each paragraph pdf appeared on a code (in the print version was then hidden). The editor through that code compiled in an index analytical excel which was then imported into indesign, went to read the code and put the right number of page. Does anyone know that plugin or script used?