title: Good metadata image dump utilities?
body: <p>I'm looking for the best tool out there to extract any and all metadata embedded within the most popular image file formats (JPEG and PNG specifically). I would like to know about whatever is in there (XMP, Exif, IPTC/IIM, etc.). Ideally I am looking for an all-in-one solution that I can run from a command line, but am interested to hear about any other tools in this area that are of value.</p>
  
  <p>I have found the following, each with advantages/disadvantages:</p>
  
  <ul>
  <li><a href="https://ExifTool.org/" rel="nofollow noreferrer"><code>ExifTool</code></a> is good, but the output is a little more roughshod that I would like.</li>
  <li><a href="http://metadataworkinggroup.com/specs/test_files.html" rel="nofollow noreferrer"><code>DumpImage</code></a> from the <a href="http://metadataworkinggroup.com/" rel="nofollow noreferrer">Metadata Working Group</a> has good formatting of the metadata it does find, but doesn't support PNG.</li>
  </ul>