If PDFs match size and page length criteria, open them in chrome. Searches two folders "Single" and "Multiple" within the starting directory.

check_pages_openwithchrome.ps1

Get-ChildItem -LiteralPath .\ -Recurse | Where-Object {
	$_ -is [System.IO.FileInfo] `
	-and (($_.Directory.Name -eq 'Single' `
	-and $_.Length -gt (1*1024*1204)) `
	-or ($_.Directory.Name -eq 'Multiple' `
	-and $_.Length -gt (5*1024*1204)))
} | ForEach-Object {
	$command = '"E:\Program Files (x86)\PDFtk Server\bin\pdftk.exe" "'+$_.FullName+'" dump_data | findstr NumberOfPages'
	$output = iex "& $command"	
	$pages = $output.Substring(15,$output.length-15)
	Write-Host $_.FullName '|' $pages
	if((0+$pages) -gt 4){
		#$openReader = '"C:\Program Files (x86)\Foxit Software\Foxit Reader\FoxitReader.exe" "'+$_.FullName+'"'
		#iex "& $openReader"
		$path = '"'+$_.FullName+'"'
		Start-Process -FilePath "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" -ArgumentList $path
	}
}

Write-Host "Press any key to continue ..."

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