From ed2679ec3ea391889cfe7ab4d4d122dd131272d3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Fromme?= <fromme@dreipunktnull.com>
Date: Tue, 18 Mar 2025 20:09:50 +0100
Subject: [PATCH] fix: ensure pdf annotations are preserved when sanitizing
 upload

---
 src/Service/Pdf/Sanitizer.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/Service/Pdf/Sanitizer.php b/src/Service/Pdf/Sanitizer.php
index fd29ee0..4915c40 100644
--- a/src/Service/Pdf/Sanitizer.php
+++ b/src/Service/Pdf/Sanitizer.php
@@ -22,7 +22,9 @@ class Sanitizer
         $filesystem = new Filesystem();
 
         if (true === $backup) {
-            $filesystem->copy($inputFilepath, $inputFilepath.'.bak');
+            $parts = pathinfo($inputFilepath);
+            $backupFilename = sprintf('%s/%s.orig.%s', $parts['dirname'], $parts['filename'], $parts['extension']);
+            $filesystem->copy($inputFilepath, $backupFilename);
         }
 
         $tempFilename = sha1($inputFilepath);
@@ -57,6 +59,7 @@ class Sanitizer
             '-dNOPAUSE',
             '-dQUIET',
             '-dBATCH',
+            '-dPreserveAnnots=false',
             '-sDEVICE=pdfwrite',
             '-dCompatibilityLevel=1.4',
             '-sOutputFile='.$outputFilepath,