How do disable TCPDF version shown in the browser after PDF generation - php

Question

When i generate the final PDF the version is being displayed.
Is there any way to hide this information ?
I looked into the package documentation but i could not find anything.
This is information I do not want to share.
I checked if there are any functions but I can't find any.
Here is my code that i use to generate the pdf
$pdf = new \TCPDF('L', PDF_UNIT, PDF_PAGE_FORMAT, true, 'UTF-8', false);
$pdf->setPrintHeader(false);
$pdf->setPrintFooter(false);
$pdfParams = $this->handlePageParamsByCoverSize($coverSize);
$fontSize = $this->calculateFontSizeByCoverSize($coverSize);
$scissorsIconPath = $this->fileLocator->locate('scissors.png');
$pdf->SetFont(
'helvetica',
'',
$fontSize
);
$pdf->AddPage('L', $pdfParams['format'], true, true);
$pdf->Image(
$coverPath,
$pdfParams['cover']['x'],
$pdfParams['cover']['y'],
$pdfParams['cover']['w'],
$pdfParams['cover']['h'],
'',
'',
'',
false,
300,
'',
false,
false,
0
);
$pdf->Image(
$scissorsIconPath,
$pdfParams['scissorsIcon']['x'],
$pdfParams['scissorsIcon']['y'],
$pdfParams['scissorsIcon']['w'],
$pdfParams['scissorsIcon']['h'],
'',
'',
'',
false,
300,
'',
false,
false,
0
);
$filePath = '/covers/' .$coverName . '.pdf';
$absFileName = $rootPath . $filePath;
try {
$pdf->Output($absFileName, 'F');
} catch (\Exception $e) {
//Move on
}
if (file_exists($absFileName)) {
$result = [
'absPath' => $absFileName,
'path' => $filePath,
];
} else {
$result = ['path' => 'error'];
}
return $result;
I am using the following package
"tecnickcom/tcpdf": "^6.4"
EDIT: Add code and more informations

Answer 1

TCPDF seems to have to methods that might help you:
$tcpdf->SetCreator('My PDF-Generator tool');
$tcpdf->SetAuthor('Your name');
I haven't tried it by myself. I just had a look at the examples of the TCPDF documentation.

Answer 2

Well, if you use a free lib it's quite normal that you can't change that. It would be the same case with other products.
But if you search with a tool such as ripgrep in the source code, you'll see that this string is defined in include/tcpdf_static.php at line 127 and is called by tcpdf.php at two places:
rg "getTCPDFProducer"
Output:
include\tcpdf_static.php
127: public static function getTCPDFProducer() {
tcpdf.php
9554: $out .= ' /Producer '.$this->_textstring(TCPDF_STATIC::getTCPDFProducer(), $oid);
9649: $xmp .= "\t\t\t".'<pdf:Producer>'.TCPDF_STATIC::_escapeXML(TCPDF_STATIC::getTCPDFProducer()).'</pdf:Producer>'."\n";
So if you really have to hide that, you should find a way to override that method, eventually apply a home-made patch or alter the generated file during or after generation.