But what is the difference with other indexing software?

TExtract uses a combination of automated and manual indexing, supported by linking of the index with the text. No other back-of-book indexing software has this:

• TExtract creates the initial index itself, giving you a jump-start. Entries are words or phrases. Other software requires you to type in each entry, or to select each entry text, or to provide a list of terms.
• The TExtract editor has an index panel as well as a text panel. The index is linked to the text, enabling powerful navigation and editing features. You can navigate and edit each entry and reference in context.
• In TExtract, entries are enriched with additional information to support editing, such as each entry's significance score that enables you to focus on relevant entries.
• Next to the automated and semi-automatic features, TExtract provides all the manual indexing features you need, but these features are supported by the navigation facilities. For example, each entry and reference you add manually is linked to the text and navigable.
• The linking between the index and the text enables powerful features such as document replacement, embedded indexing in Word, and exporting to an EPUB ebook. You can re-use an existing print index when republishing, even if no TExtract project exists.
• TExtract has many other smart features not available in any other software, such as automatic cross-referencing of acronyms and abbreviations, various views of the index combining related entries, and more.
• The formatted index created with TExtract conforms to professional indexing standards. Non-professional indexing software (e.g. Microsoft Word's manual indexing feature) does not.