diff --git a/Dockerfile b/Dockerfile
index b638af7f..b4750b73 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -18,6 +18,13 @@ RUN apk add --no-cache \
 # Install PHP extensions
 RUN docker-php-ext-install pdo pdo_pgsql pgsql zip gd
 
+# Configure PHP for large file uploads
+RUN echo "upload_max_filesize = 550M" >> /usr/local/etc/php/conf.d/uploads.ini && \
+    echo "post_max_size = 550M" >> /usr/local/etc/php/conf.d/uploads.ini && \
+    echo "max_execution_time = 300" >> /usr/local/etc/php/conf.d/uploads.ini && \
+    echo "max_input_time = 300" >> /usr/local/etc/php/conf.d/uploads.ini && \
+    echo "memory_limit = 512M" >> /usr/local/etc/php/conf.d/uploads.ini
+
 # Install Composer
 COPY --from=composer:latest /usr/bin/composer /usr/bin/composer
 
diff --git a/README.md b/README.md
index 50473046..b2bc0fea 100644
--- a/README.md
+++ b/README.md
@@ -66,7 +66,7 @@ This website provides public access to court documents from an ongoing lawsuit i
   - Delete entries (cascades to associated documents)
   - View entry details
 - **Document Management**:
-  - Upload PDF documents (10MB max)
+  - Upload PDF documents (500MB max)
   - UUID-based file naming for security
   - Multiple documents per docket entry
   - Delete documents
diff --git a/app/Http/Controllers/Admin/DocumentController.php b/app/Http/Controllers/Admin/DocumentController.php
index 6eea8223..76087e78 100644
--- a/app/Http/Controllers/Admin/DocumentController.php
+++ b/app/Http/Controllers/Admin/DocumentController.php
@@ -18,7 +18,7 @@ class DocumentController extends Controller
     public function store(Request $request, DocketEntry $docketEntry): RedirectResponse
     {
         $validated = $request->validate([
-            'file' => 'required|file|mimes:pdf|max:10240', // 10MB max
+            'file' => 'required|file|mimes:pdf|max:512000', // 500MB max
             'title' => 'required|string|max:255',
             'summary' => 'nullable|string',
         ]);
diff --git a/docker/nginx.conf b/docker/nginx.conf
index a7ce7b4d..63ac3416 100644
--- a/docker/nginx.conf
+++ b/docker/nginx.conf
@@ -22,7 +22,7 @@ http {
     tcp_nodelay on;
     keepalive_timeout 65;
     types_hash_max_size 2048;
-    client_max_body_size 20M;
+    client_max_body_size 550M;
 
     gzip on;
     gzip_vary on;