Allowed memory size exhausted on Font.php line 150

• PHP Version: PHP 8.3.10 (cli)
• PDFParser Version: smalot/pdfparser": "^2.11"

Description:

PDF input

unparseble.pdf

Expected output & actual output

Getting error:

PHP Fatal error: Allowed memory size of 3221225472 bytes exhausted (tried to allocate 1342177280 bytes) in ../smalot/pdfparser/src/Smalot/PdfParser/Font.php on line 150

Symfony\Component\ErrorHandler\Error\FatalError

`Allowed memory size of 3221225472 bytes exhausted (tried to allocate 1342177280 bytes)

at vendor/smalot/pdfparser/src/Smalot/PdfParser/Font.php:150 146▕ 147▕ if (!isset(self::$uchrCache[$code])) { 148▕ // html_entity_decode() will not work with UTF-16 or UTF-32 char entities, 149▕ // therefore, we use mb_convert_encoding() instead ➜ 150▕ self::$uchrCache[$code] = mb_convert_encoding("&#{$code};", 'UTF-8', 'HTML-ENTITIES'); 151▕ } 152▕ 153▕ return self::$uchrCache[$code]; 154▕ }

`Whoops\Exception\ErrorException

Allowed memory size of 3221225472 bytes exhausted (tried to allocate 1342177280 bytes)

at vendor/smalot/pdfparser/src/Smalot/PdfParser/Font.php:150
146▕
147▕ if (!isset(self::$uchrCache[$code])) {
148▕ // html_entity_decode() will not work with UTF-16 or UTF-32 char entities,
149▕ // therefore, we use mb_convert_encoding() instead
➜ 150▕ self::$uchrCache[$code] = mb_convert_encoding("&#{$code};", 'UTF-8', 'HTML-ENTITIES');
151▕ }
152▕
153▕ return self::$uchrCache[$code];
154▕ }

  +1 vendor frames

2 [internal]:0
Whoops\Run::handleShutdown()

Code

$this->pdfParser = new Parser();
$pdf = $this->pdfParser->parseFile($file);

Start by reproducing the failure with the attached unparseble.pdf through Parser->parseFile(), then inspect the character conversion and cache handling at src/Smalot/PdfParser/Font.php:150. Done means the provided PDF can be parsed without exhausting the configured memory limit, with the relevant behavior covered by an appropriate test if the project has one.