Rotate images with EXIF rotation

Fix #1667.

tests/draw/test_image.py

@@ -547,3 +547,18 @@ def test_images_border_absolute(assert_pixels):
         img { margin: 1px; border: 1px solid lime; position: absolute }
       </style>
       <div><img src="pattern.png"></div>''')
+
+
+@assert_no_logs
+def test_image_exif(assert_same_renderings):
+    assert_same_renderings(
+        '''
+            <style>@page { size: 10px }</style>
+            <img style="display: block" src="not-optimized.jpg">
+        ''',
+        '''
+            <style>@page { size: 10px }</style>
+            <img style="display: block" src="not-optimized-exif.jpg">
+        ''',
+        tolerance=25,
+    )

weasyprint/images.py

@@ -7,7 +7,7 @@
 from math import inf
 from xml.etree import ElementTree
 
-from PIL import Image
+from PIL import Image, ImageOps
 
 from .layout.percent import percentage
 from .logger import LOGGER
@@ -131,6 +131,8 @@ def get_image_from_uri(cache, url_fetcher, optimize_size, url,
                 else:
                     # Store image id to enable cache in Stream.add_image
                     image_id = md5(url.encode()).hexdigest()
+                    if 'exif' in pillow_image.info:
+                        pillow_image = ImageOps.exif_transpose(pillow_image)
                     image = RasterImage(pillow_image, image_id, optimize_size)
 
     except (URLFetchingError, ImageLoadingError) as exception: