CODEWITHSUNDEEP
pdfcommand-line
Kodiak
Kodiak

Reputation: 19

How to find password protected pdf-files in a directory?

In a windows directory I have about 100 pdf-files, some are password protected, some are not. Is there an easy way (in the command-line or maybe with a freeware tool) to find the ones which are password protected without opening each of them in a pdf-reader?

Upvotes: 0

Views: 3025

Answers (2)

msitt
msitt

Reputation: 1237

Since you are on Windows, you can use the iTextSharp library to accomplish this.

First, extract itextsharp.dll, which is inside the itextsharp-dll-core archive.

Then, use the following PowerShell script:

Add-Type -Path .\itextsharp.dll

Get-ChildItem -Filter *.pdf |
ForEach-Object {
    $filename = $_.Name
    Try {
        $pdf = New-Object iTextSharp.text.pdf.PdfReader($_.FullName)
        If ($pdf.IsEncrypted()) {
            $filename
        }
    }
    Catch {
        $filename
    }
}

The output will be the name of each PDF which is secured or encrypted.

Upvotes: 1

JMax
JMax

Reputation: 1202

You could use the script of is it possible to check if pdf is password protected using ghostscript? and extend it to iterate over a bunch of files and eg. move all non-password protected files into a subdirectory.

Upvotes: 0

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