Also, be aware that there a a lot of PDF files that have text which is the
result of a low-accuracy OCR scan of the page images in the PDF file.
High-accuracy OCR scan is rather expensive. You can usually tell if you have
a scanned PDF by zooming way in - a PDF file generated directly from a
word processor source file will retain smooth curves on characters while a
PDF generated from scanned page images will show heavy pixelation.
-- Jack Krupansky
-Original Message-
From: Alexandre Rafalovitch
Sent: Tuesday, May 6, 2014 1:30 AM
To: solr-user@lucene.apache.org
Subject: Re: Indexing scanned PDFs
Nothing I am aware of for Solr directly. You may have better luck
chasing this at TIKA mailing list, as that's what Solr uses under
covers to index PDF otherwise. Doing a quick search for Tika and OCR
brings up a number of links.
Regards,
Alex.
Personal website: http://www.outerthoughts.com/
Current project: http://www.solr-start.com/ - Accelerating your Solr
proficiency
On Tue, May 6, 2014 at 12:15 PM, Chandan Tamrakar
chandan.tamra...@nepasoft.com wrote:
we are using SOLr to index pdf documents but there are cases where PDFs
are usually a scanned document with no text to extract and index .
Is there a plugin or module in SOLR that we can integrate so that it would
actually extract a text / OCR and then index?
Thanks in advance
Chandan Tamrakar
