Is there software to allow me to search a PDF file with Regex? [closed]

Is there software to allow me to search a PDF file with Regex? [closed] I would like a PDF viewer that I can search documents with using regular expressions. Is there such a thing? I've tried PowerGrep, but it doesn't have a graphical viewer and its interface is a little heavy for my users.
Asked by: Guest \| Views: 466

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Guest [Entry]

"Windows

With regex search:

PDF Search
PDF Manager
dnGREP (via plug-in)
FileLocator Pro or Agent Ransack
PowerGrep

Without regex search:

Adobe PDF iFilter
PDFSearcher
PDF Explorer
Sumatra PDF (sources)
File Search Assistant (FSA)
Foxit Reader + IFilter (or other FoxIt softwares)

Other:

grepWin, it supports regex, but doesn't support PDF files yet.

Linux

Without regex search:

pdfgrep (no GUI, available via apt-get)

Example regex usage: (e )?Universit[yä])@Claudius

Related question: Is there any pdf reader that supports word searching with regular expression?"