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Batch convert a folder of DOCX files to PDF

G20th April 2016

C11 Comments

TAdobe, Microsoft Office, Word

Use this handy PowerShell script to convert all Microsoft Word DOCX files in a directory into Adobe Acrobat PDF files.

This simple PowerShell script will read through a directory and convert all Microsoft Word files (.doc, .docm and .docx) into PDF files. Simply change the code to reflect the target directory.

$path = "c:\path\to\files" #Target directory for converting Word files
$word_app = New-Object -ComObject Word.Application

#Convert .doc and .docx to .pdf
Get-ChildItem -Path $path -Filter *.doc? | ForEach-Object {
    $document = $word_app.Documents.Open($_.FullName)
    $pdf_filename = "$($_.DirectoryName)\$($_.BaseName).pdf"
    $document.SaveAs([ref] $pdf_filename, [ref] 17)

A -Recurse function can be added if required.

PDF files will be output to the same directory as their progenitor .doc/.docx files and will share the same file name.



11 responses to “Batch convert a folder of DOCX files to PDF”

  • Written by tester on 13 August 2016:


    Thank you so much for this script, it works perfect under windows 10 with office 2016, you saved me hours of work! I have thousands of docx files to convert to pdf for work and this just saved my day.

  • Written by Dave Chadderton on 7 July 2017:

    Ok, so I didn’t have 1000s of PDFs like the other commenter, but I did have 74 and this script has just saved me a couple of hours work!

    Thank you.

  • Written by Thomas Baerten on 18 June 2018:


  • Written by Abdul Ahad on 27 June 2018:

    Thanks a ton for saving valuable time :D

  • Written by Liam Fitzgerald on 31 August 2018:

    Thanks, super helpful, on my system I needed to remove the [ref] from this line

    $document.SaveAs([ref] $pdf_filename, [ref] 17)

    as I was getting errors like this:

    Argument: ‘1’ should not be a System.Management.Automation.PSReference. Do not use [ref].
    At C:\Users\lfitzgerald\Documents\ian\convert.ps1:8 char:21
    + $document.SaveAs <<<< ([ref] $pdf_filename, [ref] 17)
    + CategoryInfo : NotSpecified: (:) [], MethodException
    + FullyQualifiedErrorId : RefArgumentToNonRefParameterMsg

    Once I changed it to: $document.SaveAs($pdf_filename, 17) it all worked correctly.

    Thanks again.

  • Written by Robin Back on 5 December 2018:

    Excellent. Many thanks. Now adding Powershell scripting to the toolbox.

  • Written by Thomas on 15 January 2019:

    Hey guys, I keep getting this error

    You cannot call a method on a null-valued expression.
    At line:6 char:5
    + $document = $word_app.Documents.Open($_.FullName)
    + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull

  • Written by Yossi on 23 July 2019:

    Hi, first.. many thanks its save my slot of times.

    How can this script convert also from the subfolders…
    My doc file is in c:\docs
    I want also to convert files inside c:\docs\projects
    and more folder inside c:\docs

    Can you pls show me what I need to add to this script?

    • Written by Simon on 8 August 2019:

      When using OMPM, you would use the “\*” as many as 9 times to have it search the underlying folders, i.e. fldr=C:\Temp\*\*\*\*\*\*\*

      Try that.

    • Written by PM on 23 August 2019:

      I am thinking that this is what Adam meant when he made reference to adding a -Recurse function. Probably after Get-ChildItem.

  • Written by wordtopdf on 6 November 2019:

    Which one is best word to pdf converter online ?

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