This is mainly a request for Iohannes but I thought it would be in-topic so I'm sending to the list.
The excellent pdf "pd-externals howto" that can be downloaded from [1] is not searchable. I opened it using both "Document Viewer" and "Okular" under Linux and in both viewers, when you enter any search string, there are no results.
Iohannes, would you be able to re-export the pdf or share in a different format so that it's searchable?
Thanks!
[1] http://iem.at/pd/externals-HOWTO/