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.

Download: Chilkat .NET Assemblies

Chilkat.Xmp xmp = new Chilkat.Xmp();

bool success;

success = xmp.UnlockComponent("Anything for 30-day trial.");
if (success != true) {
    MessageBox.Show(xmp.LastErrorText);
    return;
}

Chilkat.Xml xml = null;

//  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 = 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) {
    MessageBox.Show(xml.LastErrorText);
    return;
}

//  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) {
    MessageBox.Show(xmp.LastErrorText);
    return;
}

success = xmp.Append(xml);
if (success != true) {
    MessageBox.Show(xmp.LastErrorText);
    return;
}

success = xmp.SaveAppFile("screamOut.jpg");
if (success != true) {
    MessageBox.Show(xmp.LastErrorText);
    return;
}