Copies JPG and PNG images from the Content Delivery Manager.

Copy-SpotlightImages.ps1

#Requires -Version 5.1
#Requires -Modules 'Appx'

[CmdletBinding()]
param (
    [Parameter(Mandatory=$true, Position=0)]
    [string] $Destination,

    [Parameter()]
    [ValidateNotNullOrEmpty()]
    [int] $MinimumSize = 500kb,

    [Parameter()]
    [switch] $Force
)

$filter = {
    $b = Get-Content -LiteralPath $input.PSPath -TotalCount 8 -Encoding Byte
    if ($b[0] -eq 0x89 -and $b[1] -eq 0x50 -and $b[2] -eq 0x4e -and $b[3] -eq 0x47 -and `
        $b[4] -eq 0x0d -and $b[5] -eq 0x0a -and $b[6] -eq 0x1a -and $b[7] -eq 0x0a) {
            $script:extension = 'png'
            $true
    } elseif ($b[0] -eq 0xff -and $b[1] -eq 0xd8) {
        if (($b[2] -eq 0xdd -and $b[3] -eq 0xe0) -or `
            ($b[2] -eq 0xff -and $b[3] -eq 0xdb) -or `
            ($b[2] -eq 0xff -and $b[3] -eq 0xe0) -or `
            ($b[2] -eq 0xff -and $b[3] -eq 0xe1)) {
                $script:extension = 'jpg'
                $true
            }
    }

    $false
}

$appx = Get-AppxPackage 'Microsoft.Windows.ContentDeliveryManager'
Join-Path $env:LOCALAPPDATA "Packages\$($appx.PackageFamilyName)\LocalState\Assets" `
    | Get-ChildItem `
    | Where-Object { $_.Length -ge $MinimumSize } `
    | Where-Object -FilterScript $filter `
    | ForEach-Object -Begin {
        $null = New-Item $Destination -ItemType Directory -Force
    } -Process {
        $destinationFile = Join-Path $Destination "$($_.Name).$extension"
        $_ | Copy-Item -Destination $destinationFile -Force:$Force -PassThru
    }

<#
.SYNOPSIS
Copies JPG and PNG images from the Content Delivery Manager.

.DESCRIPTION
Copies all detected JPG and PNG images from the Windows Content Delivery Manager.
Detection is based on the $MinimumSize and magic numbers (first few bytes).

.PARAMETER Destination
The destination folder to where images are copied.

.PARAMETER MinimumSize
The minimum file size of files to scan.

.PARAMETER Force
Overwrite files when copying.

.OUTPUTS
System.IO.FileInfo
#>