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Warn about duplicate Raqm text preprocessing #9914

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9 changes: 9 additions & 0 deletions docs/reference/ImageDraw.rst
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Expand Up @@ -399,6 +399,15 @@ Methods

Draw a shape.

.. note::

When libraqm is available, Pillow performs complex text layout, including
shaping and bidirectional text handling, itself. Do not pre-process text
with ``arabic_reshaper`` and ``python-bidi`` in this case, as applying the
same processing twice produces incorrect results. Use
:py:func:`PIL.features.check` with ``"raqm"`` to determine whether
libraqm is available before deciding whether pre-processing is needed.

.. py:method:: ImageDraw.text(xy, text, fill=None, font=None, anchor=None, spacing=4, align="left", direction=None, features=None, language=None, stroke_width=0, stroke_fill=None, embedded_color=False, font_size=None)

Draws the string at the given position.
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