Solution: indexing/searching pdf files with accented chars
eZpublish needs external tools for pdf file indexing. Path to that tool is set in binaryfile.ini
Originally i was using the pstotext too, but it does not work well and often gives garbage as output. Better tool is pdftotext from xpdf project, as suggested in this article.
In my case the above was not enough, as pdf files apparently are in iso-8859-1 but eZpublish expects UTF-8 as input.
So, the contents of ezpdftotext should be:
#!/bin/sh pdftotext $1 -|iconv -f ISO-8859-1 -t UTF-8