Add/Replace String Property in XMP

Download: Chilkat .NET Assemblies

C# XMP example code showing how to update an XMP contained in a JPG by adding and/or replacing string property values.

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

// Open a JPG (or TIFF) file that already contains embedded XMP metadata		
// (Another example shows how to add XMP metadata to a JPG that has none.)
xmp.LoadAppFile("IndependantPhotographer-Example.jpg");
		
Chilkat.Xml xml = xmp.GetEmbedded(0);

// Add or replace some simple string properties.
// If a property already exists, it is replaced.
xmp.AddSimpleStr(xml,"Iptc4xmpCore:Chilkat","Blah blah");
xmp.AddSimpleStr(xml,"xmpPLUS:Chilkat","Blah2 blah2");
xmp.AddSimpleStr(xml,"pdf:Chilkat","Blah3 blah3");

// Show the XMP document after adding the properties.
xml.SaveXml("afterAdd.xml");

// Re-write the JPG with the new properties added.
xmp.SaveAppFile("afterAdd.jpg");

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