Correctly parse FunctionBasedShading matrix and fix #702

UglyToad · Nov 12, 2023 · 62bc32a · 62bc32a
1 parent 17d50f0
commit 62bc32a
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Showing 3 changed files with 11 additions and 1 deletion.
diff --git a/src/UglyToad.PdfPig.Tests/Integration/Documents/PDFBOX-1869-4-1.pdf b/src/UglyToad.PdfPig.Tests/Integration/Documents/PDFBOX-1869-4-1.pdf
diff --git a/src/UglyToad.PdfPig.Tests/Integration/ShadingTests.cs b/src/UglyToad.PdfPig.Tests/Integration/ShadingTests.cs
@@ -4,6 +4,16 @@
 
     public class ShadingTests
     {
+        [Fact]
+        public void Issue702()
+        {
+            // Placeholder test for issue 702, the document contains a FunctionBasedShading
+            using (var document = PdfDocument.Open(IntegrationHelpers.GetDocumentPath("PDFBOX-1869-4-1.pdf")))
+            {
+                var page1 = document.GetPage(1);
+            }
+        }
+
         [Fact]
         public void AxialRadial1()
         {

diff --git a/src/UglyToad.PdfPig/Util/ShadingParser.cs b/src/UglyToad.PdfPig/Util/ShadingParser.cs
@@ -144,7 +144,7 @@ private static FunctionBasedShading CreateFunctionBasedShading(DictionaryToken s
             }
 
             TransformationMatrix matrix;
-            if (shadingDictionary.TryGet<ArrayToken>(NameToken.Coords, scanner, out var matrixToken))
+            if (shadingDictionary.TryGet<ArrayToken>(NameToken.Matrix, scanner, out var matrixToken))
             {
                 matrix = TransformationMatrix.FromArray(matrixToken.Data.OfType<NumericToken>().Select(n => n.Data).ToArray());
             }