From 6c5d355aee4890eecc15aa3c821478246e29b366 Mon Sep 17 00:00:00 2001
From: "valery.bokov" <vlry.bkv@gmail.com>
Date: Sat, 10 Jan 2026 11:42:56 +0100
Subject: [PATCH] add null check in ImageIOUtil.writeImage method

---
 .../org/apache/pdfbox/tools/imageio/ImageIOUtil.java  | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/tools/src/main/java/org/apache/pdfbox/tools/imageio/ImageIOUtil.java b/tools/src/main/java/org/apache/pdfbox/tools/imageio/ImageIOUtil.java
index 07d97324954..1f68aa4a8d6 100644
--- a/tools/src/main/java/org/apache/pdfbox/tools/imageio/ImageIOUtil.java
+++ b/tools/src/main/java/org/apache/pdfbox/tools/imageio/ImageIOUtil.java
@@ -311,8 +311,15 @@ else if ("jpeg".equalsIgnoreCase(formatName) || "jpg".equalsIgnoreCase(formatNam
 
             // write
             imageOutput = ImageIO.createImageOutputStream(output);
-            writer.setOutput(imageOutput);
-            writer.write(null, new IIOImage(image, null, metadata), param);
+            if (imageOutput != null)
+            {
+                writer.setOutput(imageOutput);
+                writer.write(null, new IIOImage(image, null, metadata), param);
+            }
+            else
+            {
+                return false;
+            }
         }
         finally
         {