Using powershell to batch convert docx to pdf - powershell

Question

I'm attempting to use powershell to batch convert a lot of docx into pdf, into a different directory while maintaining the folder structure of the root.
I have the script working, however around 1 out of every 10 documents word pops up a "SaveAs" dialog, which i do not understand prompting me to save the docx file, although i have visible set to false.
#Stage the files
$sourceDir = "C:\Documents\"
$targetDir = "C:\Temp_Stage\"
Get-ChildItem $sourceDir -filter "*.doc?" -recurse | foreach{
$targetFile = $targetDir + $_.FullName.SubString($sourceDir.Length);
New-Item -ItemType File -Path $targetFile -Force;
Copy-Item $_.FullName -destination $targetFile
}
#Convert the files
$wdFormatPDF = 17
$word = New-Object -ComObject word.application
$word.visible = $false
$folderpath = "c:\Temp_Stage\*"
$fileTypes = "*.docx","*doc"
Get-ChildItem -path $folderpath -include $fileTypes -Recurse |
foreach-object {
$path = ($_.fullname).substring(0,($_.FullName).lastindexOf("."))
$doc = $word.documents.open($_.fullname)
$doc.saveas([ref] $path, [ref]$wdFormatPDF)
$doc.close()
}
$word.Quit()
Is there a way to suppress all word dialogs / warning / errors it should be a fairly automatic process that has ended up being pretty manual process.

Answer 1

I found out that you should pause between the Word-COM commands.
I also had to write a script that Word converts the documents from. dot to. dotm.
Not only did I occasionally get the save dialog, but also a lot of E_FAIL errors in the console.
The breaks (maximum 50ms) helped a lot.
Break in Powershell:
Start-Sleep -m 50
I hope it will help you.
Greetings
Bloodrayne1995