Word文書のパスワード付き編集保護を解除する（DeepLがかけたものとか！）

Remove-DocumentProtectionFromAWordDocument.ps1

function Remove-DocumentProtectionFromAWordDocument {
    param (
        [Parameter(Mandatory = $true, Position = 0)]
        [string]$InputFilePath,
        [Parameter(Mandatory = $false, Position = 1)]
        [string]$OutputFilePath
    )

    # if (-not $InputFilePath) {
    #     Write-Host "Usage: Remove-DocumentProtectionFromAWordDocument input.docx"
    #     Write-Host "Usage: Remove-DocumentProtectionFromAWordDocument input.docx output.docx"
    #     return
    # }
    if (-not (Test-Path $InputFilePath)) {
        Write-Error "The specified file does not exist."
        return
    }
    if ([System.IO.Path]::GetExtension($InputFilePath) -ne ".docx") {
        Write-Error "The specified file is not a word document."
        return
    }

    if (-not $OutputFilePath) {
        $OutputFilePath = "out.docx"
    }

    $tempDir = [System.IO.Path]::GetTempPath() + [System.IO.Path]::GetRandomFileName()
    New-Item -ItemType Directory -Force -Path $tempDir | Out-Null
    $tempDir = $tempDir + "\"
    Expand-Archive -Path $InputFilePath -DestinationPath $tempDir -Force | Out-Null

    $wordSettingsXmlPath = $tempDir + "word\settings.xml"
    $wordSettingsXml = [xml](Get-Content $wordSettingsXmlPath)
    $wordSettingsXml `
    | Select-Xml -Namespace @{w = "http://schemas.openxmlformats.org/wordprocessingml/2006/main" } -XPath "//w:documentProtection" `
    | ForEach-Object {
        $_.Node.ParentNode.RemoveChild($_.Node)
    } | Out-Null
    $wordSettingsXml.Save($wordSettingsXmlPath)

    Compress-Archive -Path $tempDir* -DestinationPath $OutputFilePath -Force | Out-Null
    Remove-Item -Path $tempDir -Force -Recurse | Out-Null
}