We can use this simple API to download a folders full-text content, extract the content in various formats (HTML, plain, MOBI, PDF, text and RTF) and query the inner meta data of extracted documents.
Using Aperture SDK to query full-text documents
For example we have a little folder holding the following documents:
It is very often that one is interested in get searching for a phrase or the exact matching. For example I had a 6add127376 bertans