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[EP-tech] Garbage indexing some pdf

Dear all,
we found that some PDFs aren't parseable by pdftotext function, creating documents completely full of garbage. It's not a permission problem (pdf blocked in copy&paste), more probably is an encoding problem : opening them with acrobat/xpfd, i can see character fonts with enconding type "embedded". 
Did somebody  find this type of pdf files ? Anybody resolved ?

We can find them simply with this select :

select *,length(word) fron eprint__rindex where length(word) > 35

In attach a screenshot with some of the eprint__rindex records garbaged ...
With this select you'll find also pdfs using high unicode characters : a world will open you :-D 

Best regards,
Paolo Tealdi

--
Ing. Paolo Tealdi         Area IT - Politecnico Torino
Telefono/Phone : +39-011-0906714 , FAX : +39-011-0906799
Indirizzo/Address : C.so Duca degli Abruzzi,  24 - 10129 Torino - ITALY
Skype : tealdi.paolo
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Attachment: example.odt
Description: application/vnd.oasis.opendocument.text