Insert multiple signatures with image in PDF with higher version v1.4

[michael-guemo]

I am trying to sign a PDF multiple times with a digital signature and image. In version v1.4 it signs and preserves the images in all the parts where it was placed, but in higher versions v.1.7 it preserves all the signatures and only the last one added with an image.

$obj->set_signature_appearance($page, [$x, $y, $x + $width, $y + $height], $image);

if (!$obj->sign_document($p12File, $password, $page, $image, $x, $y, [120, 40])) {
$arrResponse = array('status' => false, 'msg' => 'El certificado no es valido');
echo json_encode($arrResponse, JSON_UNESCAPED_UNICODE);
die();
} else {
$docsigned = $obj->to_pdf_file_s();

if ($docsigned === false) {
    $arrResponse = array('status' => false, 'msg' => 'No se pudo firmar el documento');
    echo json_encode($arrResponse, JSON_UNESCAPED_UNICODE);
    die();
} else {

    $filePathTemp = 'assets/pdf/demo.pdf';
    if (!file_exists($folderPathTemp)) {
        mkdir($folderPathTemp, 0777, true);
    }

    if (file_put_contents($filePathTemp, $docsigned) !== false) {
        $file_content = file_get_contents($filePathTemp);
        $obj = PDFDoc::from_string($file_content);
    }
}

}