Add XMP MetaData to JPG or TIFF

Demonstrates how to add XMP metadata to a JPG or TIFF image that doesn't already have XMP metadata.

Downloads for Windows/Linux and Install Instructions

require 'rubygems'
require 'chilkat'

xmp = Chilkat::CkXmp.new()

success = xmp.UnlockComponent("Anything for 30-day trial.")
if (success != true)
    print xmp.lastErrorText() + "\n"
    exit
end

#  The first step is to create a new XMP document, which is nothing
#  more than XML.  The NewXmp method returns an XML document with
#  the standard XMP boilerplate.
# xml is a CkXml
xml = xmp.NewXmp()

#  Add some properties...
success = xmp.AddSimpleStr(xml,"Iptc4xmpCore:Chilkat","Blah blah")
#  If you wish to view the XML, save it to a file and review it
#  with a text editor:
success = xml.SaveXml("newXmp.xml")
if (success != true)
    print xml.lastErrorText() + "\n"
    exit
end

#  To add the XMP to the JPG (or TIFF), simply load the JPG,
#  append the XMP, and save:
success = xmp.LoadAppFile("scream.jpg")
if (success != true)
    print xmp.lastErrorText() + "\n"
    exit
end

success = xmp.Append(xml)
if (success != true)
    print xmp.lastErrorText() + "\n"
    exit
end

success = xmp.SaveAppFile("screamOut.jpg")
if (success != true)
    print xmp.lastErrorText() + "\n"
    exit
end