Insert XMP Metadata Into JPG / TIFF

C# XMP example code showing how to insert XMP metadata into a JPG or TIFF image which does not yet have embedded XMP.

Chilkat.Xmp xmp = new Chilkat.Xmp();
xmp.UnlockComponent("anything for 30-day trial");

// Add XMP metadata to a JPG (or TIFF)

// 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.  
Chilkat.Xml xml = xmp.NewXmp();
// Add some properties...
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:
xml.SaveXml("newXmp.xml");

// To add the XMP to the JPG (or TIFF), simply load the JPG,
// append the XMP, and save:
xmp.LoadAppFile("scream.jpg");
xmp.Append(xml);
xmp.SaveAppFile("screamOut.jpg");

That was easy!

Important: The download for this example does not contain the ChilkatDotNet.dll which
must be downloaded and installed separately at http://www.chilkatsoft.com/downloads.asp.
Once installed, add a reference to the DLL in the project by following the instructions at
http://www.example-code.com/csharp/step2.asp