splitindex – Unlimited number of indexes

SplitIn­dex con­sists of a LaTeX pack­age, spli­tidx, and a small pro­gram, splitin­dex. The pack­age may be used to pro­duce one in­dex or sev­eral in­dexes. Without splitin­dex (for ex­am­ple, us­ing the in­dex pack­age), the num­ber of in­dexes is lim­ited by the num­ber of TeX’s out­put streams. But us­ing the pro­gram you may use even more than 16 in­dexes: spli­tidx out­puts only a sin­gle file \job­name.idx and the pro­gram splits that file into sev­eral raw in­dex files and calls your fa­vorite in­dex pro­ces­sor for each of the files.