(VB.NET) 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.

Chilkat .NET Downloads Chilkat .NET Framework Chilkat for .NET Core

' This example assumes the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

Dim xmp As New Chilkat.Xmp

Dim xml As Chilkat.Xml

' 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...
Dim success As Boolean = 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) Then
    Debug.WriteLine(xml.LastErrorText)
    Exit Sub
End If


' 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) Then
    Debug.WriteLine(xmp.LastErrorText)
    Exit Sub
End If

success = xmp.Append(xml)
If (success <> True) Then
    Debug.WriteLine(xmp.LastErrorText)
    Exit Sub
End If

success = xmp.SaveAppFile("screamOut.jpg")
If (success <> True) Then
    Debug.WriteLine(xmp.LastErrorText)
    Exit Sub
End If