diff --git a/src/CollectionExtension.php b/src/CollectionExtension.php
index efe680f..a268d6f 100644
--- a/src/CollectionExtension.php
+++ b/src/CollectionExtension.php
@@ -49,6 +49,11 @@ class CollectionExtension
                 return fn ($callback) => $this->registerCustomCallback('withFallback', $callback);
             }
 
+            public function maxWidth()
+            {
+                return fn ($callback) => $this->registerCustomCallback('maxWidth', $callback);
+            }
+
             public function runCallback()
             {
                 return function (string $callback, ...$parameters) {
@@ -76,6 +81,7 @@ class CollectionExtension
                     }
                     $this->customCallbacks = collect([
                         'forceFileName' => fn ($model, $name) => $name,
+                        'maxWidth' => fn ($size) => null,
                         'stored' => fn ($event) => true,
                         'after' => fn ($event) => true,
                         'destroyed' => fn ($event) => true,
diff --git a/src/MediaController.php b/src/MediaController.php
index 50c944d..a95eb46 100644
--- a/src/MediaController.php
+++ b/src/MediaController.php
@@ -7,8 +7,11 @@ use Illuminate\Http\JsonResponse;
 use Illuminate\Http\Request;
 use Illuminate\Validation\Rule;
 use Illuminate\Validation\ValidationException;
+use Spatie\Image\Image;
 use Spatie\LaravelData\DataCollection;
 use Spatie\MediaLibrary\HasMedia;
+use Spatie\MediaLibrary\MediaCollections\Exceptions\InvalidBase64Data;
+use Spatie\MediaLibrary\MediaCollections\FileAdder;
 use Spatie\MediaLibrary\MediaCollections\MediaCollection;
 use Spatie\MediaLibrary\MediaCollections\Models\Media;
 
@@ -46,8 +49,8 @@ class MediaController
             $pathinfo = pathinfo($c['name']);
             $basename = $collection->runCallback('forceFileName', $model, $pathinfo['filename']);
             $path = $basename.'.'.$pathinfo['extension'];
-            $adder = $model
-                ->addMediaFromBase64($c['content'])
+
+            $adder = $this->fileAdderFromData($model, $c['content'], $collection)
                 ->usingName($basename)
                 ->usingFileName($path)
                 ->withCustomProperties($collection->runCallback('withDefaultProperties', $path));
@@ -133,4 +136,34 @@ class MediaController
 
         return $model;
     }
+
+    protected function fileAdderFromData($model, $data, $collection): FileAdder
+    {
+        $maxWidth = $collection->runCallback('maxWidth', 9);
+        if (str_contains($data, ';base64')) {
+            [$_, $data] = explode(';', $data);
+            [$_, $data] = explode(',', $data);
+        }
+
+        // strict mode filters for non-base64 alphabet characters
+        $binaryData = base64_decode($data, true);
+
+        if (false === $binaryData) {
+            throw InvalidBase64Data::create();
+        }
+
+        // decoding and then reencoding should not change the data
+        if (base64_encode($binaryData) !== $data) {
+            throw InvalidBase64Data::create();
+        }
+
+        $tmpFile = tempnam(sys_get_temp_dir(), 'media-library');
+        file_put_contents($tmpFile, $binaryData);
+
+        if (null !== $maxWidth && 'image/jpeg' === mime_content_type($tmpFile)) {
+            Image::load($tmpFile)->width($maxWidth)->save();
+        }
+
+        return $model->addMedia($tmpFile);
+    }
 }
diff --git a/tests/Feature/UploadTest.php b/tests/Feature/UploadTest.php
index 52dfa25..211be8c 100644
--- a/tests/Feature/UploadTest.php
+++ b/tests/Feature/UploadTest.php
@@ -35,6 +35,25 @@ test('it uploads a single file to a single file collection', function () {
     $response->assertJsonMissingPath('model_id');
 });
 
+test('it uploads a single image to a single file collection', function () {
+    $this->auth()->registerModel();
+    $post = $this->newPost();
+    $content = base64_encode($this->jpgFile()->getContent());
+
+    $response = $this->postJson('/mediaupload', [
+        'model' => 'post',
+        'id' => $post->id,
+        'collection' => 'defaultSingleFile',
+        'payload' => [
+            'content' => $content,
+            'name' => 'beispiel bild.jpg',
+        ],
+    ]);
+
+    $response->assertStatus(201);
+    $this->assertCount(1, $post->getMedia('defaultSingleFile'));
+});
+
 test('it forces a filename for a single collection', function () {
     Carbon::setTestNow(Carbon::parse('2023-04-04 00:00:00'));
     $this->auth()->registerModel();
diff --git a/tests/Models/Post.php b/tests/Models/Post.php
index 5a3943e..2f93853 100644
--- a/tests/Models/Post.php
+++ b/tests/Models/Post.php
@@ -20,7 +20,7 @@ class Post extends Model implements HasMedia
 
     public function registerMediaCollections(): void
     {
-        $this->addMediaCollection('defaultSingleFile')->singleFile();
+        $this->addMediaCollection('defaultSingleFile')->maxWidth(fn () => 250)->singleFile();
 
         $this->addMediaCollection('conversionsWithDefault')
              ->singleFile()