diff --git a/src/controllers/AssetsController.php b/src/controllers/AssetsController.php
index 16fca1b..e791dfb 100644
--- a/src/controllers/AssetsController.php
+++ b/src/controllers/AssetsController.php
@@ -11,9 +11,12 @@
 use craft\fields\Assets as AssetsField;
 use craft\helpers\Assets;
 use craft\helpers\Db;
+use craft\helpers\FileHelper;
+use craft\helpers\Image;
 use craft\models\Volume;
 use craft\web\Controller;
 use DateTime;
+use Throwable;
 use yii\base\Event;
 use yii\base\Exception;
 use yii\base\Model;
@@ -95,8 +98,6 @@ public function actionCreateAsset(): Response
         $originalFilename = $this->request->getRequiredBodyParam('originalFilename');
         $targetFilename = $this->request->getRequiredBodyParam('targetFilename');
         $size = $this->request->getBodyParam('size');
-        $width = $this->request->getBodyParam('width');
-        $height = $this->request->getBodyParam('height');
         $elementsService = Craft::$app->getElements();
         $lastModifiedMs = (int) $this->request->getBodyParam('lastModified');
         $dateModified = $lastModifiedMs
@@ -160,8 +161,6 @@ public function actionCreateAsset(): Response
         $asset->avoidFilenameConflicts = true;
         $asset->dateModified = $dateModified;
         $asset->size = $size;
-        $asset->width = $width;
-        $asset->height = $height;
 
         // Setting newFolderId, so that extension validation on newLocation occurs
         $asset->newFolderId = $folder->id;
@@ -172,6 +171,8 @@ public function actionCreateAsset(): Response
         // Handle special characters that have been encoded from the presigned URL
         $asset->folderPath = is_string($folder->path) ? Fs::urlEncodePathSegments($folder->path) : $asset->folderPath;
 
+        [$asset->width, $asset->height] = $this->uploadedImageDimensions($asset, $filename);
+
         if (!$selectionCondition) {
             $asset->newFilename = $targetFilename;
         }
@@ -240,8 +241,6 @@ public function actionReplaceFile(): Response
         $filename = $this->request->getBodyParam('filename');
         $targetFilename = $this->request->getBodyParam('targetFilename');
         $size = $this->request->getBodyParam('size');
-        $width = $this->request->getBodyParam('width');
-        $height = $this->request->getBodyParam('height');
         $lastModifiedMs = (int) $this->request->getBodyParam('lastModified');
         $dateModified = $lastModifiedMs
             ? DateTime::createFromFormat('U', (string) floor($lastModifiedMs / 1000))
@@ -272,8 +271,6 @@ public function actionReplaceFile(): Response
 
         // Handle the Element Action
         if ($assetToReplace !== null && $filename) {
-            $assetToReplace->width = $width;
-            $assetToReplace->height = $height;
             $assetToReplace->size = $size;
             $assetToReplace->dateModified = $dateModified;
             if (!$this->replaceAssetFile($assetToReplace, $filename, $targetFilename)) {
@@ -357,6 +354,7 @@ public function replaceAssetFile(Asset $asset, string $filename, string $targetF
         $asset->avoidFilenameConflicts = true;
         $asset->setScenario(Asset::SCENARIO_REPLACE);
         $asset->setFilename($filename);
+        [$asset->width, $asset->height] = $this->uploadedImageDimensions($asset, $filename);
         $asset->newFilename = $targetFilename;
 
         $saved = $this->saveAsset($asset);
@@ -396,4 +394,47 @@ private function volumeSubpath(Volume $volume): string
     {
         return method_exists($volume, 'getSubpath') ? $volume->getSubpath() : '';
     }
+
+    protected function uploadedImageDimensions(Asset $asset, string $filename): array
+    {
+        if (Assets::getFileKindByExtension($filename) !== Asset::KIND_IMAGE) {
+            return [null, null];
+        }
+
+        return $this->readUploadedImageDimensions($asset) ?? [null, null];
+    }
+
+    protected function readUploadedImageDimensions(Asset $asset): ?array
+    {
+        $stream = null;
+        $tempPath = null;
+
+        try {
+            $stream = $asset->getVolume()->getFs()->getFileStream($asset->getPath());
+            $imageSize = Image::imageSizeByStream($stream);
+
+            if ($imageSize === false || !isset($imageSize[0], $imageSize[1])) {
+                fclose($stream);
+                $stream = null;
+
+                $tempPath = $asset->getCopyOfFile();
+                $imageSize = Image::imageSize($tempPath);
+            }
+
+            return [
+                (int)$imageSize[0] ?: null,
+                (int)$imageSize[1] ?: null,
+            ];
+        } catch (Throwable) {
+            return null;
+        } finally {
+            if (is_resource($stream)) {
+                fclose($stream);
+            }
+
+            if ($tempPath !== null) {
+                FileHelper::unlink($tempPath);
+            }
+        }
+    }
 }
diff --git a/src/fs/Fs.php b/src/fs/Fs.php
index 5bdbd44..8c05a06 100644
--- a/src/fs/Fs.php
+++ b/src/fs/Fs.php
@@ -94,7 +94,7 @@ public function createUrl(string $path = ''): UriInterface
     {
         if ($this->useLocalFs) {
             return Modifier::wrap($this->getLocalFs()->getRootUrl() ?? '/')
-                ->appendSegment($this->createPath($path))
+                ->appendPath($this->createPath($path))
                 ->unwrap();
         }
 
@@ -102,12 +102,12 @@ public function createUrl(string $path = ''): UriInterface
 
         if ($baseUrl) {
             return Modifier::wrap($baseUrl)
-                ->appendSegment($this->createPath($path))
+                ->appendPath($this->createPath($path))
                 ->unwrap();
         }
 
         return Modifier::wrap(Module::getInstance()->getConfig()->cdnBaseUrl)
-            ->appendSegment($this->createBucketPath($path))
+            ->appendPath($this->createBucketPath($path))
             ->unwrap();
     }
 
diff --git a/tests/unit/AssetsControllerTest.php b/tests/unit/AssetsControllerTest.php
index d6d85dd..f6756e9 100644
--- a/tests/unit/AssetsControllerTest.php
+++ b/tests/unit/AssetsControllerTest.php
@@ -5,6 +5,7 @@
 use Codeception\Test\Unit;
 use Craft;
 use craft\cloud\controllers\AssetsController;
+use craft\elements\Asset;
 use craft\models\Volume;
 use ReflectionMethod;
 
@@ -39,6 +40,56 @@ public function testVolumeSubpathReturnsVolumeSubpathOnCraft5(): void
         $this->assertSame('volume-prefix/', $this->invokeVolumeSubpath($volume));
     }
 
+    public function testImageUploadsUseUploadedImageDimensions(): void
+    {
+        $controller = new DimensionTestAssetsController('cloud-assets', Craft::$app);
+        $controller->uploadedImageDimensions = [2139, 3020];
+
+        $this->assertSame([2139, 3020], $controller->uploadedImageDimensionsForTest(
+            new Asset(),
+            'upload.jpeg',
+        ));
+        $this->assertSame(1, $controller->readCount);
+    }
+
+    public function testImageUploadsUseNullDimensionsWhenUploadedImageDimensionsCannotBeRead(): void
+    {
+        $controller = new DimensionTestAssetsController('cloud-assets', Craft::$app);
+
+        $this->assertSame([null, null], $controller->uploadedImageDimensionsForTest(
+            new Asset(),
+            'upload.jpeg',
+        ));
+        $this->assertSame(1, $controller->readCount);
+    }
+
+    public function testNonImageUploadsUseNullDimensions(): void
+    {
+        $controller = new DimensionTestAssetsController('cloud-assets', Craft::$app);
+        $controller->uploadedImageDimensions = [2139, 3020];
+
+        $this->assertSame([null, null], $controller->uploadedImageDimensionsForTest(
+            new Asset(),
+            'document.pdf',
+        ));
+        $this->assertSame(0, $controller->readCount);
+    }
+
+    public function testReplacementUploadsUseServerDimensionsForUploadedFile(): void
+    {
+        $asset = new Asset();
+        $asset->folderPath = 'uploads';
+
+        $controller = new DimensionTestAssetsController('cloud-assets', Craft::$app);
+        $controller->uploadedImageDimensions = [1080, 1440];
+
+        $this->assertSame([1080, 1440], $controller->uploadedImageDimensionsForTest(
+            $asset,
+            'upload-replacement.jpeg',
+        ));
+        $this->assertSame(1, $controller->readCount);
+    }
+
     private function invokeVolumeSubpath(Volume $volume): string
     {
         $controller = new AssetsController('cloud-assets', Craft::$app);
@@ -48,3 +99,23 @@ private function invokeVolumeSubpath(Volume $volume): string
         return $method->invoke($controller, $volume);
     }
 }
+
+class DimensionTestAssetsController extends AssetsController
+{
+    public ?array $uploadedImageDimensions = null;
+    public int $readCount = 0;
+
+    public function uploadedImageDimensionsForTest(Asset $asset, string $filename): array
+    {
+        $asset->setFilename($filename);
+
+        return $this->uploadedImageDimensions($asset, $filename);
+    }
+
+    protected function readUploadedImageDimensions(Asset $asset): ?array
+    {
+        $this->readCount++;
+
+        return $this->uploadedImageDimensions;
+    }
+}