Comments (5)
stephanITC
commented on June 18, 2024
1
Finally found the issue: the .../vendor/dompdf/dompdf/lib/fonts/ directory has not had sufficient rights to create the .ufm font and .ufm.json file. chmod -R 777 fonts/ made it work.
unfortunately no error reported that...
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bsweeney
commented on June 18, 2024
Which version of Dompdf are you using? Do you have a sample of the HTML + CSS you're using with that font?
As for the amount of memory, that's only 16MB. Dompdf is not optimized for operation in low-memory environments, so hopefully that is not the maximum amount of memory available to PHP.
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stephanITC
commented on June 18, 2024
I am using Dompdf 2.0.4.
My Code looks like this:
$dompdf = new Dompdf([
'isRemoteEnabled' => true,
'isHtml5ParserEnabled' => true,
'chroot' => ABSPATH, // this is my constant for the projects absolute path (works for all images, etc)
'defaultFont' => 'Courier',
]);
$html = ' <!DOCTYPE html>
<html lang="de">
<head>
<style>
@font-face {
font-family: "segoe-ui";
font-weight: 300;
font-style: normal;
font-variant: normal;
src: url("../public/assets/fonts/segoe-ui/SegoeUI.ttf") format("truetype");
}
body {
font-family: "segoe-ui", sans-serif;
font-weight:300;
}
</style>
<title>PDF</title>
</head>
<body>
This is a string as the only content in the pdf
</body>
</html>';
$dompdf->loadHtml( $html );
$dompdf->setPaper('A4');
$dompdf->render();
$canvas = $dompdf->getCanvas();
$canvas->page_script(function ($pageNumber, $pageCount, $canvas, $fontMetrics) use ($dompdf) {
$text = 'Seite ' . $pageNumber . ' / ' . $pageCount;
$font = $fontMetrics->getFont('DejaVuSans');
$size = 9;
$canvas->text(62, 78, $text, $font, $size);
});
$filename = 'test.pdf';
$dompdf->stream( $filename, [
'compress' => true,
'Attachment' => false,
]);
I increased the Memory Limit to 128M. Using the code above i still get:
Allowed memory size of 134217728 bytes exhausted (tried to allocate 65015808 bytes)
Setting up code above with default font "Courier" everything renders as it should.
Additional information:
I am running my Dev-Environment in WSL ( Apache, PHP, MySQL). I gave 32GB of available Memory to WSL via .wslconfig. When opening up my Task Manager and unlimiting the PHP memory_limit i can see my PCs usage increasing from (default) 20GB to up to 30GB before the script breaks.
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bsweeney
commented on June 18, 2024
I certainly would not expect that particular sample to cause a memory limit exception. Maybe something about your copy of the font is problematic? Have you tried installing another font?
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bsweeney
commented on June 18, 2024
Dompdf might be swallowing that error to prevent it from halting rendering. Enabling additional debug messaging would have exposed the problem.
I am surprised lack of permissions was causing a memory limit exception. I'd have to look into it to see what Dompdf is doing in that scenario.
FYI there is a request to add a post-installation task to check permissions. I'm also thinking of a way of generating info on demand to validate the installation.
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