A Powershell Script that reads a path and recursively lists pdfs with more than one page.

check_for_multi_page_pdf.ps1

$ArrayList = [System.Collections.ArrayList]@()

# $i = $ArrayList.add('echo "Hello"')
Get-ChildItem -Path .\ -Recurse | Where-Object {
	$_ -is [System.IO.FileInfo] `
	-and ($_.Directory.Name -eq 'Single')
} | ForEach-Object {
	
	$ArrayList.add($_.FullName)
	# $output = iex "& $command"	
	# $pages = $output.Substring(15,$output.length-15)
	# Write-Host $_.FullName '|' $pages
	# if((0+$pages) -gt 1){
	# 	Write-Host $_.FullName '|' $pages
	# }
}
workflow Test-Workflow{
	param(
		[Parameter (Mandatory = $true)]
		[System.Collections.ArrayList]$ArrayList
	)
	ForEach -Parallel -throttlelimit 5 ($file in $ArrayList)
	{
		$command = '"E:\Program Files (x86)\PDFtk Server\bin\pdftk.exe" "'+$file+'" dump_data | findstr NumberOfPages'
		$output = iex "& $command"
		$pages = $output.Substring(15,$output.length-15)
		if($pages -gt 1){
		  Write-Output $file $pages
		}
		# Write-Output $output
	}
}

Test-Workflow -ArrayList ($ArrayList)
Write-Host "Press any key to continue ..."

$x = $host.UI.RawUI.ReadKey("NoEcho,IncludeKeyDown")
Write-Host "Finished"