diff --git a/QuickLook.Plugin/QuickLook.Plugin.ImageViewer/QuickLook.Plugin.ImageViewer.csproj b/QuickLook.Plugin/QuickLook.Plugin.ImageViewer/QuickLook.Plugin.ImageViewer.csproj
index 9c19bdf..059f1c6 100644
--- a/QuickLook.Plugin/QuickLook.Plugin.ImageViewer/QuickLook.Plugin.ImageViewer.csproj
+++ b/QuickLook.Plugin/QuickLook.Plugin.ImageViewer/QuickLook.Plugin.ImageViewer.csproj
@@ -136,8 +136,13 @@
     </ItemGroup>
 
     <Target Name="ReduceReleasePackaging" AfterTargets="Build" Condition="'$(Configuration)' == 'Release'">
+        <!-- Not support to ARM64 -->
+        <Delete Files="$(OutputPath)\arm64\libHarfBuzzSharp.dll" Condition="Exists('$(OutputPath)\arm64\libHarfBuzzSharp.dll')" />
+        <Delete Files="$(OutputPath)\arm64\libSkiaSharp.dll" Condition="Exists('$(OutputPath)\arm64\libSkiaSharp.dll')" />
+        <RemoveDir Directories="$(OutputPath)\arm64" Condition="Exists('$(OutputPath)\arm64')" />
         <Delete Files="$(OutputPath)\libHarfBuzzSharp.dylib" Condition="Exists('$(OutputPath)\libHarfBuzzSharp.dylib')" />
         <Delete Files="$(OutputPath)\libSkiaSharp.dylib" Condition="Exists('$(OutputPath)\libSkiaSharp.dylib')" />
+        <Delete Files="$(OutputPath)\Magick.Native-Q8-arm64.dll" Condition="Exists('$(OutputPath)\Magick.Native-Q8-arm64.dll')" />
     </Target>
 
     <ItemGroup>
diff --git a/QuickLook.Plugin/QuickLook.Plugin.PDFViewer/QuickLook.Plugin.PdfViewer.csproj b/QuickLook.Plugin/QuickLook.Plugin.PDFViewer/QuickLook.Plugin.PdfViewer.csproj
index 57d3473..f026584 100644
--- a/QuickLook.Plugin/QuickLook.Plugin.PDFViewer/QuickLook.Plugin.PdfViewer.csproj
+++ b/QuickLook.Plugin/QuickLook.Plugin.PDFViewer/QuickLook.Plugin.PdfViewer.csproj
@@ -108,12 +108,10 @@
 
     <Target Name="ReduceReleasePackaging" AfterTargets="Build" Condition="'$(Configuration)' == 'Release'">
         <!-- Not support to ARM64 -->
+        <Delete Files="$(OutputPath)\arm64\pdfium.dll" Condition="Exists('$(OutputPath)\arm64\pdfium.dll')" />
+        <RemoveDir Directories="$(OutputPath)\arm64" Condition="Exists('$(OutputPath)\arm64')" />
     </Target>
 
-    <Target Name="AfterBuildARM64" AfterTargets="Build">
-        <Copy SourceFiles="$(OutputPath)\arm64\pdfium.dll" DestinationFolder="$(OutputPath)" ContinueOnError="true" />
-    </Target>
-    
     <ItemGroup>
         <Resource Include="Resources\loading.png" />
     </ItemGroup>
diff --git a/Scripts/dir-diff.ps1 b/Scripts/dir-diff.ps1
new file mode 100644
index 0000000..21f0c8c
--- /dev/null
+++ b/Scripts/dir-diff.ps1
@@ -0,0 +1,78 @@
+param(
+    [Parameter(Mandatory=$true)]
+    [string]$DirA,
+
+    [Parameter(Mandatory=$true)]
+    [string]$DirB,
+
+    [switch]$Full
+)
+
+[Console]::OutputEncoding = [System.Text.Encoding]::UTF8
+
+function Get-Map($root) {
+
+    $root = (Resolve-Path $root).Path.TrimEnd('\')
+
+    $map = @{}
+
+    Get-ChildItem $root -Recurse -File | ForEach-Object {
+
+        $rel = $_.FullName.Substring($root.Length).TrimStart('\')
+        $map[$rel] = $_.Length
+    }
+
+    return $map
+}
+
+function Format-Size([long]$bytes) {
+
+    if ($bytes -ge 1GB) { return "{0:N2} GB" -f ($bytes / 1GB) }
+    if ($bytes -ge 1MB) { return "{0:N2} MB" -f ($bytes / 1MB) }
+    if ($bytes -ge 1KB) { return "{0:N2} KB" -f ($bytes / 1KB) }
+    return "$bytes B"
+}
+
+$mapA = Get-Map $DirA
+$mapB = Get-Map $DirB
+
+$allKeys = ($mapA.Keys + $mapB.Keys) | Sort-Object -Unique
+
+foreach ($k in $allKeys) {
+
+    $aHas = $mapA.ContainsKey($k)
+    $bHas = $mapB.ContainsKey($k)
+
+    $sizeA = if ($aHas) { $mapA[$k] } else { 0 }
+    $sizeB = if ($bHas) { $mapB[$k] } else { 0 }
+
+    $diff = $sizeB - $sizeA
+
+    $aStr = Format-Size $sizeA
+    $bStr = Format-Size $sizeB
+    $diffStr = Format-Size ([math]::Abs($diff))
+
+    if (-not $Full -and $diff -eq 0 -and $aHas -and $bHas) {
+        continue
+    }
+
+    if (-not $aHas) {
+
+        Write-Host "[+] $k ($aStr → $bStr, +$diffStr)" -ForegroundColor Green
+    }
+    elseif (-not $bHas) {
+
+        Write-Host "[-] $k ($aStr → $bStr, -$diffStr)" -ForegroundColor Red
+    }
+    elseif ($diff -eq 0) {
+
+        Write-Host "[=] $k ($aStr → $bStr, 0 B)" -ForegroundColor DarkGray
+    }
+    else {
+
+        $color = if ($diff -gt 0) { "Yellow" } else { "Cyan" }
+        $sign = if ($diff -gt 0) { "+" } else { "-" }
+
+        Write-Host "[~] $k ($aStr → $bStr, $sign$diffStr)" -ForegroundColor $color
+    }
+}