title: pdf2htmlEX cannot open or read file
body: <p>I installed docker and run pdf2htmlEX through it</p>
  
  <pre><code>alias pdf2htmlEX="docker run -ti --rm -v ~/pdf:/pdf bwits/pdf2htmlex pdf2htmlEX"
  pdf2htmlEX -h 
  pdf2htmlEX --zoom 1.3 test.pdf
  </code></pre>
  
  <p>This is my path and the pdf's contained inside:</p>
  
  <pre><code>~/Desktop/pdf$ ls 
  test.pdf    testpdf.pdf
  </code></pre>
  
  <p>When running the following commands:</p>
  
  <pre><code>df2htmlEX --zoom 1.3 test.pdf
  df2htmlEX test.pdf
  df2htmlEX pdf/test.pdf
  df2htmlEX ~pdf/test.pdf
  </code></pre>
  
  <p>and other combinations with the full path before test.pdf I continue to get unable to read the file errors.</p>
  
  <pre><code>I/O Error: Couldn't open file 'test.pdf': No such file or directory.
  Error: Cannot read the file
  </code></pre>
  
  <p>I am not sure if permissions is a cause, but when checking on user permissions it has read and write:</p>
  
  <pre><code>-rw-r--r--@ 1 test.pdf
  -rw-r--r--@ 1 testpdf.pdf
  </code></pre>
  
  <p>Any idea on why it is not finding or cannot read the pdf file that is there?  I am trying to convert it to .html</p>