I was looking over this document:
At the bottom of this page it explains how to enter a MIME type and command so that TikiWiki will search the PDF files.
I have setup pdftotext and it works at the linux command line. I also added the:
application/pdf /usr/local/bin/pdftotext %1
to my File Galleries admin page. When i upload a new PDF i can see that the .txt output from pdftotext is (i am using a directory to store all uploads) created but when i use TikiWiki search it doesn't find any of the text inside the pdf or the .txt created by pdftotext.
Any ideas how i can get TikiWiki to "index" the .txt file into the mysql database so i can search on it?