Correct PDF palette size when saving

python-pillow · Nov 16, 2023 · 98b7300 · 98b7300
1 parent da0b826
commit 98b7300
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/PIL/PdfImagePlugin.py b/src/PIL/PdfImagePlugin.py
@@ -96,7 +96,7 @@ def _write_image(im, filename, existing_pdf, image_refs):
         dict_obj["ColorSpace"] = [
             PdfParser.PdfName("Indexed"),
             PdfParser.PdfName("DeviceRGB"),
-            255,
+            len(palette) // 3 - 1,
             PdfParser.PdfBinary(palette),
         ]
         procset = "ImageI"  # indexed color