SPLAT-4180 remove comments

Author: petarjakopec

bundle/Controller/Resource/Upload.php

@@ -19,6 +19,7 @@
 use Symfony\Contracts\Translation\TranslatorInterface;
 
 use function fclose;
+use function filesize;
 use function fopen;
 use function fread;
 use function fseek;
@@ -27,10 +28,9 @@
 use function is_array;
 use function is_file;
 use function is_readable;
-use function filesize;
 use function preg_match;
-use function strrpos;
 use function strpos;
+use function strrpos;
 use function strtolower;
 use function substr;
 
@@ -148,9 +148,6 @@ private function isEncryptedPdf(UploadedFile $file): bool
 
         $fileSize = filesize($path);
 
-        // For small PDFs, `head` and `tail` reads can overlap and even fully duplicate the file contents.
-        // This can re-introduce false positives (e.g. `/Encrypt` in a trailing comment after `%%EOF`).
-        // In that case, scan the full content once.
         if ($fileSize !== false && $fileSize <= 20480) {
             $content = (string) fread($fp, $fileSize);
         } else {
@@ -168,14 +165,11 @@ private function isEncryptedPdf(UploadedFile $file): bool
             return false;
         }
 
-        // Ignore anything after the last EOF marker (some tools append non-PDF comments/metadata).
         $eofPos = strrpos($content, '%%EOF');
         if ($eofPos !== false) {
             $content = substr($content, 0, $eofPos + 5);
         }
 
-        // Detect presence of encryption dictionary reference in PDF object context.
-        // This avoids false positives where `/Encrypt` appears in metadata or trailing comments.
         return (bool) preg_match('/\/(?:Encrypt)\s+(\d+|<<)/m', $content);
     }
 }