Index Generator is an application that helps you automatically build an index for a book or document in PDF format. It takes the text from a PDF and creates a list of all words along with the pages where each word appears. This index helps readers quickly locate key terms in a document without flipping through every page.

Before using Index Generator, documents that are not already in PDF format must be converted (for example by saving as PDF from Microsoft Word or another text editor). Once the file is ready, users can choose which words and phrases to include in the index, and they can also decide which pages should be shown or excluded.

Index Generator also supports relationships between words. For example, one word can be marked as a reference to another, or words can be grouped as sub‑entries under main terms. After selecting and arranging all entries, the generated index can be saved or printed in several formats such as Word, RTF, plain text, or PDF.

Index Generator has been updated over time, and the current version adds support for different language packs and multiple operating systems. This gives users flexibility when preparing documents for publication or review. 

Key Features:

• Generates a full index from PDF books with page numbers.
• Supports custom selection of words and phrases to include.
• Allows including or excluding specific pages for indexing.
• Supports word relationships and hierarchical structures (subheadings, references).
• Provides output formatting options before saving.
• Exports index in multiple formats: Word, RTF, plain text, PDF.
• Offers preview and clipboard support for easy use.
• Includes additional language packs for multi-language indexing.