git clone git@github.com:harryosmar/php-pdf-digital-signature.git cd php-pdf-digital-signature composer install # this will generate .pdf file in storage/logs/ php bin/console.php app:pdf-generate Open https://account.ascertia.com/demos/PDFSignatureVerificationStep1 to verify the newly generated file
# generate new .crt file, it's contained certificate & private key openssl req -x509 -nodes -days 365000 -newkey rsa:1024 -keyout filename.crt -out filename.crt # convert .crt to binar .p12 file openssl pkcs12 -export -in tcpdf.crt -out filename.p12 # get private key from .p12 file, it will ask for passphrase/password, so the generated private key will be encrypted openssl pkcs12 -in filename.p12 -nocerts -out filename.key # get certificate from .p12 file openssl pkcs12 -in filename.p12 -clcerts -nokeys -out filename.crt <?php /** @var TCPDF $pdf */ $pdf->setSignature('file://PATH-TO-CRT-FILE', 'file://PATH-TO-PRIVATE-KEY-FILE', 'PRIVATE-KEY-FILE-PASSPHRASE', '', 2, $info);