Stop words

It is highly recommended to maintain your $noadd array in your config.php. Add stop words to that array which you did not want to be indexed in your RS database. If you don't populate this array ALL words coming from the OCR will be added as keywords which can take a lot of time and will probably bloat your database with a lot of unspecific search terms.

You can find stop word lists for many languages all over the internet (Like here) which you can use as a starting point for your well maintained custom stop word list.