Pdfs je nach Größe an unterschiedliche Drucker senden

# Pfad zur pdfinfo.exe
$pdfinfo = 'D:\Tools\pdfinfo.exe'  
# Ordner der die PDFs enthält
$source = 'D:\Quelle'  
# Ordner in den die PDFs nach dem Druck verschoben werden
$target = "D:\Ziel"  
# A4 Printer
$printerA4 = "HP Officejet A4"  
# A3 Printer
$printerA3 = "HP Officejet A3"  

# ============================

# Funktion die die Seitengrößen des PDFs ausliest
function Add-PageSize(){
    param(
        [parameter(mandatory=$true,ValueFromPipeline=$true)]$fileItem
    )
    process{
        if ($fileItem.Extension -eq '.pdf'){  
            try{
                $sizes = [regex]::Match((& $pdfinfo $fileItem.FullName | out-string),'(?im)^Page size:\s*([\d\.]*) x ([\d\.]*)')  
                $width = [int]([double]$sizes.Groups[1].Value * 0.352778)
                $height = [int]([double]$sizes.Groups[2].Value * 0.352778)
                $fileItem | Add-Member -MemberType NoteProperty -Name 'Seitenbreite' -Value $width  
                $fileItem | Add-Member -MemberType NoteProperty -Name 'Seitenhöhe' -Value $height  
            }catch{}
        }
        $fileitem
    }
}

# Druckfunktion
function Print-PDF {
    param(
        [parameter(mandatory=$true,ValueFromPipelineByPropertyName=$true)][Alias("Fullname")][ValidateNotNullOrEmpty()][string[]]$files,  
        [ValidateScript({(gwmi Win32_Printer -Filter "Name='$_'")})][string]$printer,  
        [parameter(ParameterSetname="A")][switch]$DeleteAfterPrint,  
        [parameter(ParameterSetname="B")][switch]$MovePDF,  
        [parameter(Mandatory=$true,ParameterSetname="B")][ValidateScript({Test-Path $_})]$Destination  
    )
    begin{
        # set printer
        if ($printer -ne ''){  
            # store original printer
            $originalPrinter = gwmi Win32_Printer -Filter "Default='true'"  
            # set default printer temporarily to defined printer
            [void](gwmi Win32_Printer -Filter "Name='$printer'").SetDefaultPrinter()  
        }

        # function to check file lock state
        $CheckFileStatus = {
            param([string]$filePath)
            try{
                $fileStream = (New-Object System.IO.FileInfo $filePath).OpenWrite()
                $fileStream.Close(); $fileStream.Dispose()
                # file is not locked by another process
                return $true
            }catch{
                # file is locked
                return $false
            }
        }
        $pdfAppID = $null
    }
    
    process{
        $files | %{
            write-host "Printing document: '$_' ..." -ForegroundColor Green  
            # start printing pdf with default print-handler in the system
            $pdfApp = (start-process $_ -Verb "print" -PassThru).ProcessName  
            # sleep time  / increase this parameter in case files get not printed
            sleep(3)
            # check file-lock-status in loop until it's free 
            while(!(&$CheckFileStatus $_)){sleep(1)}
            # delete file if desired by user
            if ($DeleteAfterPrint.IsPresent){    
                write-host "Deleting document: '$_' ..." -ForegroundColor Yellow  
                del $_ -Force
            }
            if ($MovePDF.IsPresent){    
                write-host "Moving document '$_' to : '$Destination' ..." -ForegroundColor Yellow  
                move-item $_ -Destination $Destination -Force
            }
        }
    }
    end{
        # kill pdf viewer process
        get-process $pdfApp -EA SilentlyContinue | Stop-Process

        if ($printer -ne ''){  
            #restore original default printer
            [void]$originalPrinter.SetDefaultPrinter()
        }
    }
}

# Seiteninfos extrahieren und nach <=A4 und >A4 gruppieren
$pagegroups = gci $source | Add-PageSize -ErrorAction SilentlyContinue | group {($_.Seitenbreite * $_.Seitenhöhe) -le 62370}

# Seiten an A4 Drucker senden 
$pagegroups | ?{$_.Name -eq $true} | select -Expand Group | Print-PDF -printer $printerA4 -MovePDF -Destination $target
# Seiten an A3 Drucker senden
$pagegroups | ?{$_.Name -eq $false} | select -Expand Group | Print-PDF -printer $printerA3 -MovePDF -Destination $target