When TIFF applies orientation on load, delete tag

radarhere · Sep 7, 2023 · 4e8c45a · 4e8c45a
1 parent dff7dcc
commit 4e8c45a
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Showing 2 changed files with 6 additions and 1 deletion.
diff --git a/Tests/test_file_libtiff.py b/Tests/test_file_libtiff.py
@@ -1035,7 +1035,10 @@ def test_orientation(self):
         with Image.open("Tests/images/g4_orientation_1.tif") as base_im:
             for i in range(2, 9):
                 with Image.open("Tests/images/g4_orientation_" + str(i) + ".tif") as im:
+                    assert 274 in im.tag_v2
+
                     im.load()
+                    assert 274 not in im.tag_v2
 
                     assert_image_similar(base_im, im, 0.7)
 

diff --git a/src/PIL/TiffImagePlugin.py b/src/PIL/TiffImagePlugin.py
@@ -1203,7 +1203,9 @@ def load(self):
         return super().load()
 
     def load_end(self):
-        ImageOps.exif_transpose(self, in_place=True)
+        if ExifTags.Base.Orientation in self.tag_v2:
+            ImageOps.exif_transpose(self, in_place=True)
+            del self.tag_v2[ExifTags.Base.Orientation]
 
         # allow closing if we're on the first frame, there's no next
         # This is the ImageFile.load path only, libtiff specific below.