Search not working in Preview.app Viewing a pdf with Preview, I do cmdF to bring up a search box and then enter a word and hit enter.  

Basically nothing happens even if it's a word that's obviously present. Sometimes if I smash my hands all over the keyboard and spin around in my chair three times the search suddenly starts working again, but I haven't figured out how to do that trick reliably.
I selected the "Table of Contents" in "View Menu" and searched again. It is working. Check the screenshot:



Anyway, make sure that your PDF contains texts and not the image of some texts.