title: tesseract ocr pdf - segmentation fault
body: <p>I am trying to OCR pdf file with <code>tesseract</code>, but it says:</p>
  
  <blockquote>
    <p>Tesseract Open Source OCR Engine name_to_image_type:Error:Unrecognized
    image type:upload526.pdf IMAGE::read_header:Error:Can't read this
    image type:upload526.pdf tesseract:Error:Read of file
    failed:upload526.pdf Segmentation fault</p>
  </blockquote>
  
  <p>I need it to make a database to search through pdfs that were scanned manually (to images)... What am I doing wrong? I read that it supports pdfs... No idea what version it is as <code>tesseract --version</code> or <code>tesseract -v</code> doesn't work at all.</p>