• add \usepackage{imakeidx} to document preamble,
• add some \index{xxx} into document body,
• add \printindex command,
• run LaTeX,
• upload xxx.idx file into this page,
• grab xxx.ind from this page into your LaTeX - overwrite the file,
• run LaTeX again,

• \index{keyword} - the simpliest index entry,
• \index{keyword!subkeyword} - nested keyword, max 3 levels,
• \index{keyword|(} and \index{keyword|)} - open and close multipage index entry,
• \index{keyword|minor} - mark entry as minor - italic page number,
• \index{keyword|major} - mark entry as major - underlined page number,
• \index{keyword|important} - mark entry as important - bold page number,
• \index{keyword|see{xxx}} - emit see,
• \index{keyword|seealso{xxx}} - emit see also,
• \index{keyword|@sort_as} - change item order - quite useful when you neeed e.g. bold keyword entry like here: \index{\textbf{keyword}|@keyword},

Note: you can mix options.

Note: expect \indexentry{...}{...} entries in the xxx.idx file.

Examples of supported page ranges in this demo:

• iv - roman numbers
• 13 - arabic numbers,
• B-13 - addendums,