title: Missing label when converting eps to pdf
body: <p>I use the following <code>gnuplot</code> script in order to plot a data file</p>
  
  <pre><code>reset
  unset key
  set size 1,1
  
  set xrange [-10.1:11]
  set yrange [-45:45]
  
  set xlabel 'x'
  set lmargin 6
  set label 1 "~x{0.7.}" font "Helvetica, 20" at graph -0.1, graph 0.5
  
  set xtics 2
  set ytics 15
  
  set mxtics 5
  set mytics 5
  
  plot "pss_data.dat" u 1:2 w dots lc rgb 'black'
  
  set term postscript eps enhanced "Helvetica" 20 size 7in, 5in
  set output 'plot.eps'
  replot
  
  reset
  set terminal windows
  
  quit
  </code></pre>
  
  <p>The exported .eps file is the following. </p>
  
  <p><img src="https://i.stack.imgur.com/AC7lo.png" alt="enter image description here"></p>
  
  <p>Well, in fact this is the corresponding .pdf file using Adobe Acrobat XI in order to make the conversion. However, the .pdf output contains not only the plot but all the unwanted black area above it! In an attempt to get rid off the white area I used the command line </p>
  
  <pre><code>epstopdf plot.eps
  </code></pre>
  
  <p>The output is the following</p>
  
  <p><img src="https://i.stack.imgur.com/zGR5I.png" alt="enter image description here"></p>
  
  <p>Now, the white area has been removed but the label at the y axis is also missing! </p>
  
  <p>Any ideas? I want to have in a .pdf file only the plot (without the above white area) but with the label at the y axis.</p>
  
  <p>Many thanks in advance.</p>