diff --git a/config/bootstrap.php b/config/bootstrap.php
index 54ad6d2..726572c 100644
--- a/config/bootstrap.php
+++ b/config/bootstrap.php
@@ -8,6 +8,7 @@ function (Event $event) {
         $controller = $event->getSubject();
         if ($controller->components()->has('RequestHandler')) {
             $controller->RequestHandler->setConfig('viewClassMap.jpg', 'HtmlToImageView.HtmlToImage');
+            $controller->RequestHandler->setConfig('viewClassMap.png', 'HtmlToImageView.HtmlToImage');
         }
     }
 );
diff --git a/src/View/HtmlToImageView.php b/src/View/HtmlToImageView.php
index 756d177..2e7e64e 100644
--- a/src/View/HtmlToImageView.php
+++ b/src/View/HtmlToImageView.php
@@ -1,6 +1,7 @@
 <?php
 namespace HtmlToImageView\View;
 
+use Cake\Core\Configure;
 use Cake\Core\Exception\Exception;
 use Cake\Event\EventManager;
 use Cake\Http\Response;
@@ -23,6 +24,13 @@ class HtmlToImageView extends View
      */
     protected $_binary = '/usr/bin/wkhtmltoimage';
 
+    /**
+     * List of allowed options for wkhtmltoimage command
+     *
+     * @var array
+     */
+    protected $_allowedImageOptions = ['crop-w', 'crop-h', 'crop-x', 'crop-y', 'width', 'height', 'format', 'quality', 'zoom'];
+
     /**
      * Flag to indicate if the environment is windows
      *
@@ -31,25 +39,25 @@ class HtmlToImageView extends View
     protected $_windowsEnvironment;
 
     /**
-     * The subdirectory. Image views are always in img.
+     * The subdirectory for image views
      *
      * @var string|null
      */
     public $subDir = 'img';
 
     /**
-     * The name of the layouts sub folder containing layouts for this View.
+     * The name of the layouts sub folder containing layouts for this View
      *
      * @var string|null
      */
     public $layoutPath = 'img';
 
     /**
-     * List of image config collected from the associated controller.
+     * List of image options
      *
      * @var array
      */
-    public $imageConfig = [];
+    public $imageOptions = [];
 
     /**
      * Constructor
@@ -57,9 +65,7 @@ class HtmlToImageView extends View
      * @param \Cake\Http\ServerRequest $request Request instance.
      * @param \Cake\Http\Response $response Response instance.
      * @param \Cake\Event\EventManager $eventManager Event manager instance.
-     * @param array $viewOptions View options. See View::$_passedVars for list of
-     *   options which get set as class properties.
-     *
+     * @param array $viewOptions View options. See View::$_passedVars for list of options which get set as class properties.
      * @throws \Cake\Core\Exception\Exception
      */
     public function __construct(
@@ -68,7 +74,8 @@ public function __construct(
         EventManager $eventManager = null,
         array $viewOptions = []
     ) {
-        $this->_passedVars[] = 'imageConfig';
+        $this->_passedVars[] = 'imageOptions';
+        $this->_windowsEnvironment = strtoupper(substr(PHP_OS, 0, 3)) === 'WIN';
 
         parent::__construct($request, $response, $eventManager, $viewOptions);
 
@@ -76,19 +83,7 @@ public function __construct(
             $this->subDir = null;
             $this->layoutPath = null;
             $this->response = $this->response->withType('html');
-
-            return;
-        }
-
-        if ($binary = Hash::get($this->imageConfig, 'binary')) {
-            $this->_binary = $binary;
         }
-
-        if (!Hash::get($this->imageConfig, 'options.format')) {
-            $this->imageConfig['options']['format'] = $this->request->getParam('_ext', 'jpg');
-        }
-
-        $this->response = $this->response->withType($this->imageConfig['options']['format']);
     }
 
     /**
@@ -139,7 +134,7 @@ public function output($html)
     }
 
     /**
-     * Execute the WkHtmlToImage command to render image
+     * Execute the wkhtmltoimage command to render image
      *
      * @param string $cmd the command to execute
      * @param string $input Html to pass to wkhtmltoimage
@@ -172,16 +167,23 @@ protected function _exec($cmd, $input)
      */
     protected function _getCommand()
     {
+        if ($binary = Configure::read('HtmlToImageView.binary')) {
+            $this->_binary = $binary;
+        }
+
         if (!is_executable($this->_binary)) {
             throw new Exception(sprintf('wkhtmltoimage binary is not found or not executable: %s', $this->_binary));
         }
 
-        $options = (array)Hash::get($this->imageConfig, 'options', []);
+        if ($imageOptions = (array)Hash::get($this->viewOptions(), 'imageOptions', [])) {
+            $this->imageOptions = array_merge($this->imageOptions, $imageOptions);
+        }
+
+        if (!Hash::get($this->imageOptions, 'format')) {
+            $this->imageOptions['format'] = $this->request->getParam('_ext', 'jpg');
+        }
 
-        $options = array_intersect_key(
-            $options,
-            array_flip(['crop-w', 'crop-h', 'crop-x', 'crop-y', 'width', 'height', 'format', 'quality', 'zoom'])
-        );
+        $options = array_intersect_key($this->imageOptions, array_flip($this->_allowedImageOptions));
         $options['quiet'] = true;
 
         if ($this->_windowsEnvironment) {
diff --git a/tests/TestCase/View/HtmlToImageViewTest.php b/tests/TestCase/View/HtmlToImageViewTest.php
index d5bb72a..93d6f29 100644
--- a/tests/TestCase/View/HtmlToImageViewTest.php
+++ b/tests/TestCase/View/HtmlToImageViewTest.php
@@ -2,6 +2,7 @@
 
 namespace ImageView\View;
 
+use Cake\Core\Configure;
 use Cake\Core\Exception\Exception;
 use Cake\Http\Response;
 use Cake\Http\ServerRequest;
@@ -27,6 +28,7 @@ public function setUp()
     {
         parent::setUp();
 
+        Configure::write('HtmlToImageView.binary', '/bin/echo');
         $request = new ServerRequest();
         $response = new Response();
         $this->View = new HtmlToImageView($request, $response);
@@ -57,7 +59,7 @@ public function testConstructor()
     public function testRender()
     {
         $request = new ServerRequest();
-        $response = new Response();
+        $response = new Response(['type' => 'image/jpeg']);
         $this->View = $this->getMockBuilder('HtmlToImageView\View\HtmlToImageView')
             ->setConstructorArgs([$request, $response])
             ->setMethods(['output'])
@@ -82,16 +84,7 @@ public function testOutput()
         $request = new ServerRequest();
         $response = new Response();
         $this->View = $this->getMockBuilder('HtmlToImageView\View\HtmlToImageView')
-            ->setConstructorArgs([
-                $request,
-                $response,
-                null,
-                [
-                    'imageConfig' => [
-                        'binary' => '/bin/echo'
-                    ]
-                ]
-            ])
+            ->setConstructorArgs([$request, $response])
             ->setMethods(['_exec'])
             ->getMock();
 
@@ -116,16 +109,7 @@ public function testOutputNoData()
         $request = new ServerRequest();
         $response = new Response();
         $this->View = $this->getMockBuilder('HtmlToImageView\View\HtmlToImageView')
-            ->setConstructorArgs([
-                $request,
-                $response,
-                null,
-                [
-                    'imageConfig' => [
-                        'binary' => '/bin/echo'
-                    ]
-                ]
-            ])
+            ->setConstructorArgs([$request, $response])
             ->setMethods(['_exec'])
             ->getMock();
 
@@ -152,16 +136,7 @@ public function testOutputError()
         $request = new ServerRequest();
         $response = new Response();
         $this->View = $this->getMockBuilder('HtmlToImageView\View\HtmlToImageView')
-            ->setConstructorArgs([
-                $request,
-                $response,
-                null,
-                [
-                    'imageConfig' => [
-                        'binary' => '/bin/echo'
-                    ]
-                ]
-            ])
+            ->setConstructorArgs([$request, $response])
             ->setMethods(['_exec'])
             ->getMock();
 
@@ -193,40 +168,31 @@ public function testGetCommand()
         $method = $class->getMethod('_getCommand');
         $method->setAccessible(true);
 
-        $this->View = new HtmlToImageView($request, $response, null, [
-            'imageConfig' => [
-                'binary' => '/bin/echo'
-            ]
-        ]);
+        $this->View = new HtmlToImageView($request, $response);
         $result = $method->invokeArgs($this->View, []);
         $expected = "/bin/echo --format 'jpg' --quiet - -";
         $this->assertEquals($expected, $result);
 
+        Configure::write('HtmlToImageView.binary', '/bin/sh');
         $this->View = new HtmlToImageView($request, $response, null, [
-            'imageConfig' => [
-                'binary' => '/bin/sh',
-                'options' => [
-                    'crop-w' => 100,
-                    'crop-h' => 200,
-                    'crop-x' => 300,
-                    'crop-y' => 400,
-                    'width' => 500,
-                    'height' => 600,
-                    'format' => 'png',
-                    'quality' => 50,
-                    'zoom' => 1.5,
-                ]
+            'imageOptions' => [
+                'crop-w' => 100,
+                'crop-h' => 200,
+                'crop-x' => 300,
+                'crop-y' => 400,
+                'width' => 500,
+                'height' => 600,
+                'format' => 'png',
+                'quality' => 50,
+                'zoom' => 1.5,
             ]
         ]);
         $result = $method->invokeArgs($this->View, []);
         $expected = "/bin/sh --crop-w '100' --crop-h '200' --crop-x '300' --crop-y '400' --width '500' --height '600' --format 'png' --quality '50' --zoom '1.5' --quiet - -";
         $this->assertEquals($expected, $result);
 
-        $this->View = new HtmlToImageView($request, $response, null, [
-            'imageConfig' => [
-                'binary' => '/bin/nonexisting',
-            ]
-        ]);
+        Configure::write('HtmlToImageView.binary', '/bin/nonexisting');
+        $this->View = new HtmlToImageView($request, $response);
         $this->expectException(Exception::class);
         $this->expectExceptionMessage('wkhtmltoimage binary is not found or not executable: /bin/nonexisting');
         $method->invokeArgs($this->View, []);
@@ -246,11 +212,7 @@ public function testExec()
         $method = $class->getMethod('_exec');
         $method->setAccessible(true);
 
-        $this->View = new HtmlToImageView($request, $response, null, [
-            'imageConfig' => [
-                'binary' => '/bin/echo'
-            ]
-        ]);
+        $this->View = new HtmlToImageView($request, $response);
 
         $result = $method->invokeArgs($this->View, ['/bin/echo test', 'test']);
         $expected = [