RadialShadingContext: Fix crash due to NPE when matrix determinant is 0

torakiki · Dec 21, 2024 · 5dced7c · 5dced7c
1 parent c16a69c
commit 5dced7c
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/src/main/java/org/sejda/sambox/pdmodel/graphics/shading/RadialShadingContext.java b/src/main/java/org/sejda/sambox/pdmodel/graphics/shading/RadialShadingContext.java
@@ -118,8 +118,10 @@ public RadialShadingContext(PDShadingType3 shading, ColorModel colorModel,
         }
         catch (NoninvertibleTransformException ex)
         {
-            LOG.error(ex.getMessage() + ", matrix: " + matrix, ex);
-            LOG.error(ex.getMessage(), ex);
+            LOG.warn(ex.getMessage() + ", matrix: " + matrix + ", using fallback to identity transform with a minimal scale to avoid singularity");
+            // Fallback to identity transform with a minimal scale to avoid singularity
+            rat = new AffineTransform();
+            rat.scale(1e-6, 1e-6);
         }
 
         // shading space -> device space