is it possible to index a hidden field? i have a newsletter content type which consists of a link to a file (pdf) and a summary field.  the idea behind the summary field is that it will contain a list of keywords and when a search hits one of these keywords the newsletter item (and so the pdf file) will be highlighted.

the issue is that i don't really want the summary text to be displayed, but if i set it as hidden in the display it doesn't seem to be indexed.

anyway that i can persuade drupal to index this field?

using 7.12 by the way if that's important.

Dave
The best way should be implementing the search_api module , with this module you can index anything and set the importance of the indexed field .

Here is a screen cast that shows how to implement here

Note that the screencast must be updated because facet_api works now without apachesolr

Enjoy!