PowerShell

XMP Array Property - Bag, Seq, or Alt

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How to insert or update an XMP array property (bag, seq, or alt). PowerShell

Add-Type -Path "C:\chilkat\ChilkatDotNet47-x64\ChilkatDotNet47.dll"

$success = $false

# This requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

$xmp = New-Object Chilkat.Xmp

# Load a JPG or TIF image file.
# Sample JPG's with XMP metadata may be found at:
# http://www.chilkatsoft.com/testData/xmp/sample1.jpg
# http://www.chilkatsoft.com/testData/xmp/sample2.jpg
# http://www.chilkatsoft.com/testData/xmp/sample3.jpg
$success = $xmp.LoadAppFile("sample1.jpg")
if ($success -ne $true) {
    $($xmp.LastErrorText)
    exit
}

$("Num embedded XMP docs: " + $xmp.NumEmbedded)

# Assuming there is at least one, get the 1st.
# (There is typically never more than one, but theoretically it's possible.)

$xml = $xmp.GetEmbedded(0)
if ($xmp.LastMethodSuccess -eq $true) {

    # Create an object to hold one or more string values.
    $sa = New-Object Chilkat.StringArray
    $success = $sa.Append("value_1")
    $success = $sa.Append("value_2")
    # ...

    $success = $xmp.AddArray($xml,"bag","Iptc4xmpCore:Chilkat",$sa)
    if ($success -ne $true) {
        $($xmp.LastErrorText)
    }
    else {
        # Save the JPG.
        $success = $xmp.SaveAppFile("modified.jpg")
        if ($success -ne $true) {
            $($xmp.LastErrorText)
        }

    }

}
else {
    $($xmp.LastErrorText)
}