What is a Document Index?

A document index is a database that stores the locations of all of the words in a group of documents except for noise words such as but and if. 

Once you have built an index for a group of documents, dtSearch can use it to perform very fast searches on those documents.   

A document index is usually about one fourth the size of the original documents, although this may vary considerably depending on the number and kinds of documents in the index.  In general, the more documents in the index, the smaller the index will be as a percentage of your original documents.