PHP code example of baldwin94 / pdf-signature-extractor

1. Go to this page and download the library: Download baldwin94/pdf-signature-extractor library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php. 
    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

baldwin94 / pdf-signature-extractor example snippets


use Baldwin94\PdfSignatureExtractor\PdfSignatureExtractor;

$pdfPath = '/ruta/al/documento.pdf';

if (PdfSignatureExtractor::hasSignatures($pdfPath)) {
    echo "El PDF tiene firmas digitales";
} else {
    echo "El PDF no tiene firmas digitales";
}


use Baldwin94\PdfSignatureExtractor\PdfSignatureExtractor;

$pdfPath = '/ruta/al/documento.pdf';

try {
    $signatures = PdfSignatureExtractor::extractSignatures($pdfPath);

    foreach ($signatures as $signature) {
        echo "Fecha de firma: " . $signature['signature_date'] . "\n";
        echo "Fecha de caducidad del certificado: " . ($signature['certificate_expiry'] ?? 'N/A') . "\n";

        if (isset($signature['signature_info'])) {
            $info = $signature['signature_info'];

            echo "Nombre: " . ($info['given_name'] ?? 'N/A') . "\n";
            echo "Apellidos: " . ($info['surname'] ?? 'N/A') . "\n";
            echo "DNI: " . ($info['serial_number'] ?? 'N/A') . "\n";
        }
    }
} catch (Exception $e) {
    echo "Error: " . $e->getMessage();
}


use Baldwin94\PdfSignatureExtractor\PdfSignatureExtractor;

class DocumentController extends Controller
{
    public function verifySignature(Request $request)
    {
        $pdfPath = $request->file('pdf')->getRealPath();

        if (!PdfSignatureExtractor::hasSignatures($pdfPath)) {
            return response()->json([
                'error' => 'El PDF no tiene firmas digitales'
            ], 400);
        }

        $signatures = PdfSignatureExtractor::extractSignatures($pdfPath);

        return response()->json([
            'signatures' => $signatures
        ]);
    }
}


[
    [
        'signature_date' => '2024-01-15 10:30:45',
        'certificate_expiry' => '2027-01-15 23:59:59',
        'signature_info' => [
            'given_name' => 'Juan',
            'surname' => 'García López',
            'serial_number' => '12345678'
        ]
    ]
]