False positive on "Secured pdf file" detection

PHP Version: 8.1
PDFParser Version: 2.11

Description:

The parser is incorrectly identifying a non-secured PDF as secured, preventing it from being read. The PDF in question can be opened and read without any password or security measures using various PDF readers (Adobe Acrobat, Chrome PDF viewer, etc.). There are no apparent security features enabled on this PDF, suggesting this is a false positive in the library's security detection mechanism.

PDF input

The PDF file can be found at: https://www.lacameraembarquee.fr/img/cms/fiches-produit/DJINeo-manuel.pdf

Expected output & actual output

Expected output: The PDF content should be successfully extracted. Actual output: An exception is thrown with the message: "Secured pdf file are currently not supported."

Code

use Smalot\PdfParser\Parser;

        $parser = new Parser();
        try {
            $pdf = $parser->parseFile($pdfPath);
            $pdfText = $pdf->getText();
            ...

smalot / pdfparser