diff --git a/README.md b/README.md
index 5a58947..7c75549 100644
--- a/README.md
+++ b/README.md
@@ -55,7 +55,7 @@ ConvertApi::setApiSecret('your-api-secret');
 ### File conversion
 
 Convert file to PDF example. All supported formats and options can be found
-[here](https://www.convertapi.com).
+[here](https://www.convertapi.com/conversions).
 
 ```php
 $result = ConvertApi::convert('pdf', ['File' => '/path/to/my_file.docx']);
@@ -96,7 +96,7 @@ $result = ConvertApi::convert(
 #### Additional conversion parameters
 
 ConvertAPI accepts additional conversion parameters depending on selected formats. All conversion
-parameters and explanations can be found [here](https://www.convertapi.com).
+parameters and explanations can be found [here](https://www.convertapi.com/conversions).
 
 ```php
 $result = ConvertApi::convert(
@@ -119,6 +119,14 @@ $info = ConvertApi::getUser();
 echo $info['SecondsLeft'];
 ```
 
+### Alternative domain
+
+Use `setApiBase` method to set alternative service domain. Dedicated to the region [domain list](https://www.convertapi.com/doc/servers-location).
+
+```php
+ConvertApi::setApiBase('https://eu-v2.convertapi.com/');
+```
+
 ### More examples
 
 Find more advanced examples in the [examples/](https://github.com/ConvertAPI/convertapi-php/tree/master/examples) folder.
diff --git a/lib/ConvertApi/Task.php b/lib/ConvertApi/Task.php
index 6aa07e5..fca394e 100644
--- a/lib/ConvertApi/Task.php
+++ b/lib/ConvertApi/Task.php
@@ -31,8 +31,9 @@ function run()
         }
 
         $fromFormat = $this->fromFormat ?: $this->detectFormat($params);
-        $converter = isset($params['converter']) ? "/converter/{$params['converter']}" : '';
-        $path = 'convert/' . $fromFormat . '/to/' . $this->toFormat . $converter;
+        $converter = $this->detectConverter($params);
+        $converterPath = $converter ? "/converter/{$converter}" : '';
+        $path = 'convert/' . $fromFormat . '/to/' . $this->toFormat . $converterPath;
 
         $response = ConvertApi::client()->post($path, $params, $readTimeout);
 
@@ -45,12 +46,12 @@ private function normalizedParams()
 
         foreach ($this->params as $key => $val)
         {
-            switch($key) {
-                case 'File':
+            switch(true) {
+                case $key != 'StoreFile' && preg_match('/File$/', $key):
                     $result[$key] = FileParam::build($val);
                     break;
 
-                case 'Files':
+                case $key == 'Files':
                     $result[$key] = $this->filesBatch($val);
                     break;
 
@@ -91,4 +92,15 @@ private function detectFormat($params)
 
         return $detector->run();
     }
+
+    private function detectConverter($params)
+    {
+        $keys = array_keys($params);
+
+        foreach ($keys as $key)
+            if (strtolower($key) == 'converter')
+                return $params[$key];
+
+        return;
+    }
 }
diff --git a/tests/ConvertApi/ConvertApiTest.php b/tests/ConvertApi/ConvertApiTest.php
index 4429f40..3cb76f5 100644
--- a/tests/ConvertApi/ConvertApiTest.php
+++ b/tests/ConvertApi/ConvertApiTest.php
@@ -159,6 +159,18 @@ public function testChainedConversion()
         $this->assertEquals('test.zip', $result->getFile()->getFileName());
     }
 
+    public function testCompare()
+    {
+        $params = [
+            'File' => 'examples/files/test.docx',
+            'CompareFile' => 'examples/files/test.docx'
+        ];
+
+        $result = ConvertApi::convert('compare', $params);
+
+        $this->assertEquals('test.docx', $result->getFile()->getFileName());
+    }
+
     public function testApiError()
     {
         $params = ['Url' => 'https://www.w3.org/TR/PNG/iso_8859-1.txt'];