Strip options

[MiKael Navarro]

 Strip:
  --dc Delete comment field from the JPEG header. Note that the comment is not part of the Exif header.
  --de Delete the Exif header entirely. This leaves other sections (IPTC, XMP, comment) intact
  --di Delete IPTC section (if present). Leaves other sections intact.
  --dx Delete XMP section (if present). Leaves other sections intact.
  --du Delete any sections that jhead doesn't know about. Leaves Exif, XMP, IPTC and comment sections intact.
  --purejpg Delete all JPEG sections that aren't necessary for rendering the image.
    Strips any metadata that various applications may have left in the image.
    A combination of the --de --dc and --du options.