Do you have tons of pdfs in your computer? Me too!
We are used to search in the web to file about the subject we are willing to know. But sometimes it is better to search in the PDFs files we already gathered.
In the past I used to use docFetcher (http://docfetcher.sourceforge.net/en/index.html) to index my files, but this program is heavy, slow (java) and crashes often.
Then today while looking for alternatives I found a program called “recoll”. It is a native program with Qt GUI. And I can install it with a single command:
$ sudo apt-get install recoll