BUG: Handle single element ColorSpace list (#2026)

Fixes #2023
py-pdf · Jul 27, 2023 · 0a9055d · 0a9055d
1 parent 0b85bce
commit 0a9055d
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diff --git a/pypdf/filters.py b/pypdf/filters.py
@@ -860,6 +860,8 @@ def _handle_jpx(
         data = data.encode()
     colors = x_object_obj.get("/Colors", 1)
     color_space: Any = x_object_obj.get("/ColorSpace", NullObject()).get_object()
+    if isinstance(color_space, list) and len(color_space) == 1:
+        color_space = color_space[0].get_object()
     if (
         IA.COLOR_SPACE in x_object_obj
         and x_object_obj[IA.COLOR_SPACE] == ColorSpaces.DEVICE_RGB

diff --git a/tests/test_filters.py b/tests/test_filters.py
@@ -553,3 +553,12 @@ def test_gray_devicen_cmyk():
     diff = ImageChops.difference(data.image, refimg)
     d = sqrt(sum([(a * a) for a in diff.getdata()])) / (diff.size[0] * diff.size[1])
     assert d < 0.001
+
+
+@pytest.mark.enable_socket()
+def test_singleton_device():
+    """From #2023"""
+    url = "https://github.com/py-pdf/pypdf/files/12177287/tt.pdf"
+    name = "pypdf_with_arr_deviceRGB.pdf"
+    reader = PdfReader(BytesIO(get_pdf_from_url(url, name=name)))
+    reader.pages[0].images[0]