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Load image palette into Python after converting to PA #9152

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Merged
merged 1 commit into from
Oct 4, 2025
Merged

Load image palette into Python after converting to PA #9152

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8 changes: 8 additions & 0 deletions Tests/test_image_convert.py
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Original file line number Diff line number Diff line change
Expand Up @@ -107,6 +107,14 @@ def test_rgba_p() -> None:
assert_image_similar(im, comparable, 20)


def test_pa() -> None:
im = hopper().convert("PA")

palette = im.palette
assert palette is not None
assert palette.colors != {}


def test_rgba() -> None:
with Image.open("Tests/images/transparent.png") as im:
assert im.mode == "RGBA"
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2 changes: 1 addition & 1 deletion src/PIL/Image.py
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Expand Up @@ -1143,7 +1143,7 @@ def convert_transparency(
raise ValueError(msg) from e

new_im = self._new(im)
if mode == "P" and palette != Palette.ADAPTIVE:
if mode in ("P", "PA") and palette != Palette.ADAPTIVE:
from . import ImagePalette

new_im.palette = ImagePalette.ImagePalette("RGB", im.getpalette("RGB"))
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