How to merge encrypted PDF files ?

@vincent15000, The solution from Acrobat expert's old article I read once (sorry, I did not retrieve any link) presented as the only one is to print each encrypted PDF as a new PDF and then merge them… Maybe there is a solution with a virtual printer on the server…

I have managed to get around this limitation by generating images for each page of the pdf and then converting the images into a PDF using one image per page, but apart from making the generated pdf considerably heavier and losing quality, you lose the ability to search the resulting pdf, could you provide the way or the package used to be able to remove signatures from documents for which you have full rights?

I have used the following function:

use Spatie\PdfToImage\Pdf as PdfImagen;
use Barryvdh\DomPDF\Facade\Pdf;

public function eliminarEncriptadoFirma($ruta)
    {
        $pdf = new PdfImagen($ruta);
        $pdf->setOutputFormat('jpg'); // Puedes cambiar el formato de salida según tus necesidades

        $rutaImagenes = storage_path().'/app/public/';

        $pdf->saveAllPagesAsImages($rutaImagenes);

        $imageFiles = glob($rutaImagenes.'/*.jpg'); // Obtén la lista de imágenes

        // Crea un nuevo PDF
        $pdf = PDF::loadView('pdf.image_pdf', compact('imageFiles'));
    
        // Guarda el PDF en el servidor
        $pdf->save($ruta);
    
        // Elimina las imágenes originales
        foreach ($imageFiles as $imageFile) {
            unlink($imageFile);
        }

    }

Hi What did you do at the end? Did you resolve this issue? I have a client, and he wants to merge some factures in PDF, but some of them are encrypted. It's factures for him, so he has rights, and we only need to merge multiple of them to print all of them at once.