title: Creating new eng.tessdata file for custom font in Tesseract giving error
body: <p>Converted the PDF file into <code>.tiff</code> which is pretty straightforward </p>
  
  <pre><code>convert -depth 4 -density 300 -background white +matte eng.arial.pdf eng.arial.tiff
  </code></pre>
  
  <p>Then train tesseract for the <code>.tiff</code> file -</p>
  
  <pre><code>tesseract eng.arial.tiff eng.arial batch.nochop makebox
  </code></pre>
  
  <p>Then feed the .tiff file into tesseract - </p>
  
  <pre><code>tesseract eng.arial.tiff eng.arial.box nobatch box.train .stderr
  </code></pre>
  
  <p>Detect the Character set used - </p>
  
  <pre><code>unicharset_extractor *.box 
  </code></pre>
  
  <p>But I am getting this error -</p>
  
  <pre><code>unicharset_extractor:./.libs/lt-unicharset_extractor.c:233: FATAL: couldn't find unicharset_extractor.
  </code></pre>
  
  <p>And it also happening for <code>mftraining</code> and <code>combine_tessdata</code> as well.</p>
  
  <p><strong>UPDATE</strong></p>
  
  <p>Ran unicharset_extractor on single box file and still doesn't work.</p>
  
  <p><a href="https://i.stack.imgur.com/mVJaF.png" rel="noreferrer"><img src="https://i.stack.imgur.com/mVJaF.png" alt="enter image description here"></a></p>
  
  <p>And it is not only with this command but also with <code>mftraining</code>, <code>cntraining</code> and <code>combine_tessdata</code>.</p>