Features Overview Leave feedback

This page contains a list of supported features. For detailed information on a particular feature, refer to the corresponding pages in the Advanced Usage section.

GroupDocs.Search provides the following indexing features:

• Create index in memory or on disk.
• Update index to take into account changed, deleted and added documents.
• Merge several indexes into one.
• Optimize index to improve search performance.
• Ability of indexing from a file, stream or structure.
• Indexing password protected documents.
• Indexing with stop words.
• Support for indexing additional fields.
• Support for blended characters.
• Support for characters indexed as a whole word.
• Support for character replacement during indexing.
• Support for custom text extractors.
• Options for compact and metadata index.
• Ability to save extracted text in index with different level of compression.
• Document filtering during indexing.
• Deleting indexed paths from index.
• Ability to separately extract data from documents and index them.
• Support for optical text recognition on images.
• Calculation and indexing of image hashes for reverse image search.
• The ability to create a distributed search network that automatically balances the load across nodes.

GroupDocs.Search provides the following search features:

• Simple word search.
• Boolean search.
• Regular expression search.
• Faceted search.
• Case sensitive search.
• Flexible fuzzy search.
• Synonym search.
• Homophone search.
• Wildcard search.
• Phrase search with wildcards.
• Search for different word forms.
• Date range search.
• Numeric range search.
• Search by chunks (pages).
• Document filtering in search result.
• Search for different object types: text, numbers, dates, file names, document types, metadata fields, document creation/modification dates.
• Combining different types of search into one search query.
• Alias substitution in search queries.
• Perform spell check during search.
• Perform keyboard layout correction during search.
• Search queries in text or flexible object form.
• Highlighting search results in the text of the entire document or in text segments.
• Multiple simultaneous thread safe search.
• Thread safe search during indexing, updating or merging operation.
• Search over several indexes simultaneously.
• Built-in support for reverse image search.