diff --git a/app/Services/Social/BlueskyPublisher.php b/app/Services/Social/BlueskyPublisher.php
index ef8e7f3f..46c3f341 100644
--- a/app/Services/Social/BlueskyPublisher.php
+++ b/app/Services/Social/BlueskyPublisher.php
@@ -105,7 +105,11 @@ private function uploadBlob(SocialAccount $account, string $service, string $url
         $tempFile = tempnam(sys_get_temp_dir(), 'bsky_blob_');
 
         try {
-            Http::withOptions(['sink' => $tempFile])->timeout(600)->get($url);
+            $downloadResponse = Http::withOptions(['sink' => $tempFile])->timeout(600)->get($url);
+
+            if ($downloadResponse->failed()) {
+                throw new \Exception('Failed to download media: HTTP '.$downloadResponse->status());
+            }
 
             $fileSize = filesize($tempFile);
 
diff --git a/app/Services/Social/FacebookPublisher.php b/app/Services/Social/FacebookPublisher.php
index f651e868..be649e8c 100644
--- a/app/Services/Social/FacebookPublisher.php
+++ b/app/Services/Social/FacebookPublisher.php
@@ -221,15 +221,25 @@ private function publishReel(string $pageId, string $accessToken, ?string $conte
         // Upload the video file
         $tempFile = tempnam(sys_get_temp_dir(), 'fb_reel_');
         try {
-            Http::withOptions(['sink' => $tempFile])->timeout(600)->get($media->url);
+            $downloadResponse = Http::withOptions(['sink' => $tempFile])->timeout(600)->get($media->url);
+
+            if ($downloadResponse->failed()) {
+                throw new \Exception('Failed to download media: HTTP '.$downloadResponse->status());
+            }
+
+            $stream = fopen($tempFile, 'r');
 
             $uploadResponse = Http::withToken($accessToken)
-                ->attach('video_file_chunk', fopen($tempFile, 'r'), 'video.mp4')
+                ->attach('video_file_chunk', $stream, 'video.mp4')
                 ->post("{$this->baseUrl}/{$videoId}", [
                     'upload_phase' => 'transfer',
                     'access_token' => $accessToken,
                 ]);
 
+            if (is_resource($stream)) {
+                fclose($stream);
+            }
+
             if ($uploadResponse->failed()) {
                 Log::error('Facebook reel upload transfer failed', ['body' => $uploadResponse->body()]);
                 $this->handleApiError($uploadResponse);
@@ -283,15 +293,25 @@ private function publishStory(string $pageId, string $accessToken, $media): arra
             // Transfer the video
             $tempFile = tempnam(sys_get_temp_dir(), 'fb_story_');
             try {
-                Http::withOptions(['sink' => $tempFile])->timeout(600)->get($media->url);
+                $downloadResponse = Http::withOptions(['sink' => $tempFile])->timeout(600)->get($media->url);
+
+                if ($downloadResponse->failed()) {
+                    throw new \Exception('Failed to download media: HTTP '.$downloadResponse->status());
+                }
+
+                $stream = fopen($tempFile, 'r');
 
                 $transferResponse = Http::withToken($accessToken)
-                    ->attach('video_file_chunk', fopen($tempFile, 'r'), 'video.mp4')
+                    ->attach('video_file_chunk', $stream, 'video.mp4')
                     ->post("{$this->baseUrl}/{$videoId}", [
                         'upload_phase' => 'transfer',
                         'access_token' => $accessToken,
                     ]);
 
+                if (is_resource($stream)) {
+                    fclose($stream);
+                }
+
                 if ($transferResponse->failed()) {
                     Log::error('Facebook video story transfer failed', ['body' => $transferResponse->body()]);
                     $this->handleApiError($transferResponse);
diff --git a/app/Services/Social/LinkedInPagePublisher.php b/app/Services/Social/LinkedInPagePublisher.php
index 08b73ae2..1c09c417 100644
--- a/app/Services/Social/LinkedInPagePublisher.php
+++ b/app/Services/Social/LinkedInPagePublisher.php
@@ -264,7 +264,11 @@ private function uploadImage($mediaItem, string $ownerUrn): ?string
         $tempFile = tempnam(sys_get_temp_dir(), 'lip_image_');
 
         try {
-            Http::withOptions(['sink' => $tempFile])->timeout(600)->get($mediaItem->url);
+            $downloadResponse = Http::withOptions(['sink' => $tempFile])->timeout(600)->get($mediaItem->url);
+
+            if ($downloadResponse->failed()) {
+                throw new \Exception('Failed to download media: HTTP '.$downloadResponse->status());
+            }
 
             $detectedMime = mime_content_type($tempFile) ?: '';
             if (str_starts_with($detectedMime, 'image/') && ! str_starts_with($detectedMime, 'image/gif')) {
@@ -311,7 +315,11 @@ private function uploadVideo($mediaItem, string $ownerUrn): ?string
 
     private function doUploadVideo(string $tempFile, $mediaItem, string $ownerUrn): ?string
     {
-        Http::withOptions(['sink' => $tempFile])->timeout(600)->get($mediaItem->url);
+        $downloadResponse = Http::withOptions(['sink' => $tempFile])->timeout(600)->get($mediaItem->url);
+
+        if ($downloadResponse->failed()) {
+            throw new \Exception('Failed to download media: HTTP '.$downloadResponse->status());
+        }
 
         $fileSize = (int) filesize($tempFile);
 
diff --git a/app/Services/Social/LinkedInPublisher.php b/app/Services/Social/LinkedInPublisher.php
index 1a9a3791..0fad60d6 100644
--- a/app/Services/Social/LinkedInPublisher.php
+++ b/app/Services/Social/LinkedInPublisher.php
@@ -245,7 +245,11 @@ private function uploadImage($mediaItem, string $ownerUrn): ?string
         $tempFile = tempnam(sys_get_temp_dir(), 'li_image_');
 
         try {
-            Http::withOptions(['sink' => $tempFile])->timeout(600)->get($mediaItem->url);
+            $downloadResponse = Http::withOptions(['sink' => $tempFile])->timeout(600)->get($mediaItem->url);
+
+            if ($downloadResponse->failed()) {
+                throw new \Exception('Failed to download media: HTTP '.$downloadResponse->status());
+            }
 
             $detectedMime = mime_content_type($tempFile) ?: '';
             if (str_starts_with($detectedMime, 'image/') && ! str_starts_with($detectedMime, 'image/gif')) {
@@ -292,7 +296,11 @@ private function uploadVideo($mediaItem, string $ownerUrn): ?string
 
     private function doUploadVideo(string $tempFile, $mediaItem, string $ownerUrn): ?string
     {
-        Http::withOptions(['sink' => $tempFile])->timeout(600)->get($mediaItem->url);
+        $downloadResponse = Http::withOptions(['sink' => $tempFile])->timeout(600)->get($mediaItem->url);
+
+        if ($downloadResponse->failed()) {
+            throw new \Exception('Failed to download media: HTTP '.$downloadResponse->status());
+        }
 
         $fileSize = (int) filesize($tempFile);
 
diff --git a/app/Services/Social/MastodonPublisher.php b/app/Services/Social/MastodonPublisher.php
index bc78fd3f..5857c730 100644
--- a/app/Services/Social/MastodonPublisher.php
+++ b/app/Services/Social/MastodonPublisher.php
@@ -65,7 +65,11 @@ private function uploadMedia(SocialAccount $account, string $instance, string $u
         $tempFile = tempnam(sys_get_temp_dir(), 'masto_media_');
 
         try {
-            Http::withOptions(['sink' => $tempFile])->timeout(600)->get($url);
+            $downloadResponse = Http::withOptions(['sink' => $tempFile])->timeout(600)->get($url);
+
+            if ($downloadResponse->failed()) {
+                throw new \Exception('Failed to download media: HTTP '.$downloadResponse->status());
+            }
 
             if (filesize($tempFile) === 0) {
                 Log::error('Mastodon failed to download media', ['url' => $url]);
diff --git a/app/Services/Social/PinterestPublisher.php b/app/Services/Social/PinterestPublisher.php
index c7cd9d29..8229ad8c 100644
--- a/app/Services/Social/PinterestPublisher.php
+++ b/app/Services/Social/PinterestPublisher.php
@@ -54,7 +54,11 @@ private function publishImagePin(PostPlatform $postPlatform): array
         $tempFile = tempnam(sys_get_temp_dir(), 'pin_image_');
 
         try {
-            Http::withOptions(['sink' => $tempFile])->timeout(600)->get($media->url);
+            $downloadResponse = Http::withOptions(['sink' => $tempFile])->timeout(600)->get($media->url);
+
+            if ($downloadResponse->failed()) {
+                throw new \Exception('Failed to download media: HTTP '.$downloadResponse->status());
+            }
 
             $detectedMime = mime_content_type($tempFile) ?: '';
             if (str_starts_with($detectedMime, 'image/') && ! str_starts_with($detectedMime, 'image/gif')) {
@@ -164,7 +168,11 @@ private function publishVideoPin(PostPlatform $postPlatform): array
         $videoStream = null;
 
         try {
-            Http::withOptions(['sink' => $tempFile])->timeout(600)->get($media->url);
+            $downloadResponse = Http::withOptions(['sink' => $tempFile])->timeout(600)->get($media->url);
+
+            if ($downloadResponse->failed()) {
+                throw new \Exception('Failed to download media: HTTP '.$downloadResponse->status());
+            }
 
             $videoStream = fopen($tempFile, 'r');
 
diff --git a/app/Services/Social/XPublisher.php b/app/Services/Social/XPublisher.php
index 947f9e18..8616a233 100644
--- a/app/Services/Social/XPublisher.php
+++ b/app/Services/Social/XPublisher.php
@@ -102,7 +102,11 @@ private function uploadMedia($mediaItem): ?array
         $tempFile = tempnam(sys_get_temp_dir(), 'x_media_');
 
         try {
-            Http::withOptions(['sink' => $tempFile])->timeout(600)->get($mediaItem->url);
+            $downloadResponse = Http::withOptions(['sink' => $tempFile])->timeout(600)->get($mediaItem->url);
+
+            if ($downloadResponse->failed()) {
+                throw new \Exception('Failed to download media: HTTP '.$downloadResponse->status());
+            }
 
             // Optimize images (skip GIFs — they need special handling)
             if (str_starts_with($mimeType, 'image/') && ! str_starts_with($mimeType, 'image/gif')) {
@@ -130,7 +134,7 @@ private function uploadMedia($mediaItem): ?array
                 ->timeout(360)
                 ->attach(
                     'media',
-                    file_get_contents($tempFile),
+                    fopen($tempFile, 'r'),
                     basename($tempFile),
                     ['Content-Type' => $mimeType]
                 );