diff --git a/README.md b/README.md
index e05b0bd..e841910 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@ You can find the Plentymarkets documentation [here](https://developers.plentymar
 * Functions for the 4 HTTP verbs: GET, POST, PUT, DELETE
 * Automatic login and refresh if login is not valid anymore
 * Simple one-time configuration with PHP array (will be saved serialized in a file)
-* Functions return an associative array
+* Functions return an associative array by default or raw data (e.g. for files)
 * Handle rate limiting (thanks [hepisec](http://github.com/hepisec))
 
 ## Installation
@@ -44,7 +44,7 @@ $handleExceptions = PlentymarketsRestClient::DONT_HANDLE_EXCEPTIONS; // false (d
 // Init
 $client = new PlentymarketsRestClient($configFilePath, $config, $handleExceptions);
 
-// After that just use it like this:
+// After that just use it like so
 $client = new PlentymarketsRestClient($configFilePath);
 ```
 
@@ -68,17 +68,25 @@ $path = "rest/orders/";
 ```
 
 It's also possible to use the function like this. It gives you more freedom, since
-you can specify the method and the $parameters given are directly given to the [guzzle
+you can specify the method and the $parameters given are directly given to the [Guzzle
 object](http://docs.guzzlephp.org/en/latest/quickstart.html).
 
 ```php
 $client->singleCall("GET", $guzzleParameterArray);
 ```
 
+### Raw Data
+
+Some endpoints, such as `/rest/bi/raw-data/file` don't return JSON but a raw file. However, by default a single call tries to [`json_decode()`](https://www.php.net/manual/en/function.json-decode.php) the response. You can disable it by setting the `$jsonDecodeEnabled` flag to `false`.
+
+```php
+$client->setJsonDecodeEnabled(PlentymarketsRestClient::JSON_DECODE_DISABLED);
+```
+
 ### Errors
 
-* If there was an error with the call (=> guzzle throws an exception) all functions will return false
-* If the specified config file doesn't exist or doesn't include username/password/url, an exception will be thrown
+* If there was an error with the call (=> guzzle throws an exception) all methods will return false, unless `$handleExceptions` has been set to `true`, in which case the exception will be handed through
+* If the specified config file doesn't exist or doesn't include username / password / url, an exception will be thrown
 
 ## TODO
 
@@ -95,6 +103,7 @@ $client->singleCall("GET", $guzzleParameterArray);
 
 ## Changelog
 
+* 0.1.16 Enable / Disable `json_decode()` to allow for querying for raw files (thx dark-cms)
 * 0.1.15 Enable returning PDFs (thx ewaldmedia)
 * 0.1.14 Add _short period write limit reached_ error handling (thx resslinger)
 * 0.1.13 Change from [Laravels `str_contains`](https://github.com/laravel/framework/blob/8.x/src/Illuminate/Support/Str.php#L181) to [PHPs `stripos()`](https://www.php.net/manual/de/function.stripos.php) because [it doesn't require `ext-mbstring`](https://github.com/repat/plentymarkets-rest-client/pull/16#issuecomment-880731813) (thx DanMan)
diff --git a/composer.json b/composer.json
index c75e372..8b7bb68 100644
--- a/composer.json
+++ b/composer.json
@@ -5,7 +5,7 @@
     "keywords": ["plentymarkets", "pm", "rest", "api", "client", "sdk"],
     "homepage": "https://github.com/repat/plentymarkets-rest-client",
     "license": "MIT",
-    "version" : "0.1.15",
+    "version" : "0.1.16",
     "authors": [
         {
             "name": "repat",
@@ -14,7 +14,7 @@
         }
     ],
     "require": {
-        "php": "^5.6 | ^7.0 | ^8.0",
+        "php": "^5.6 | ^7.0 | ^8.0 | ^8.1",
         "guzzlehttp/guzzle": "^6.0 | ^7.0",
         "nesbot/carbon": "^1.22.1 | ^2.0"
     },
diff --git a/src/PlentymarketsRestClient/PlentymarketsRestClient.php b/src/PlentymarketsRestClient/PlentymarketsRestClient.php
index 1826f56..7df1e5b 100644
--- a/src/PlentymarketsRestClient/PlentymarketsRestClient.php
+++ b/src/PlentymarketsRestClient/PlentymarketsRestClient.php
@@ -27,11 +27,13 @@ class PlentymarketsRestClient
 
     const JSON_DECODE_ENABLED = true;
     const JSON_DECODE_DISABLED = false;
-    
+
+    const RATE_LIMITING_ENABLED = true;
+    const RATE_LIMITING_DISABLED = false;
+
     const NO_CONFIG = null;
     const HANDLE_EXCEPTIONS = true;
     const DONT_HANDLE_EXCEPTIONS = false;
-    
 
     private $client;
     private $config;
@@ -39,7 +41,7 @@ class PlentymarketsRestClient
     private $rateLimitingEnabled = true;
     private $throttledOnLastRequest = false;
     private $handleExceptions = false;
-    private $jsonEncodeEnabled = true;
+    private $jsonDecodeEnabled = true;
 
     public function __construct($configFile, $config = null, $handleExceptions = false)
     {
@@ -63,7 +65,12 @@ public function __construct($configFile, $config = null, $handleExceptions = fal
             $this->login();
         }
     }
-    
+
+    public function getThrottledOnLastRequest()
+    {
+        return $this->throttledOnLastRequest;
+    }
+
     public function getRateLimitingEnabled()
     {
         return $this->rateLimitingEnabled;
@@ -71,30 +78,29 @@ public function getRateLimitingEnabled()
 
     public function setRateLimitingEnabled($rateLimitingEnabled)
     {
+        if (! is_bool($rateLimitingEnabled)) {
+            throw new \Exception('rateLimitingEnabled must be a boolean, ' . gettype($rateLimitingEnabled) . ' given');
+        }
+
         $this->rateLimitingEnabled = $rateLimitingEnabled;
         return $this;
     }
 
-    public function getThrottledOnLastRequest()
-    {
-        return $this->throttledOnLastRequest;
-    }
-    
-    public function enableJsonDecode()
-    {
-        $this->jsonEncodeEnabled = self::JSON_DECODE_ENABLED;
-        return $this;
-    }
-    public function disableJsonDecode()
+    public function getJsonDecodeEnabled()
     {
-        $this->jsonEncodeEnabled = self::JSON_DECODE_DISABLED;
-        return $this;
+        return $this->jsonDecodeEnabled;
     }
-    public function setJsonDecodeDisabled()
+
+    public function setJsonDecodeEnabled($jsonDecodeEnabled)
     {
-        $this->jsonEncodeEnabled = self::JSON_DECODE_DISABLED;
+        if (! is_bool($jsonDecodeEnabled)) {
+            throw new \Exception('jsonDecodeEnabled must be a boolean, ' . gettype($jsonDecodeEnabled) . ' given');
+        }
+
+        $this->jsonDecodeEnabled = $jsonDecodeEnabled;
         return $this;
     }
+
     public function singleCall($method, $path, $params = [])
     {
         $path = ltrim($path, '/');
@@ -143,10 +149,11 @@ public function singleCall($method, $path, $params = [])
             && $headers['Content-Type'][0] === 'application/pdf') {
             return $response->getBody()->getContents();
         }
-        if($this->jsonEncodeEnabled === self::JSON_DECODE_DISABLED)
-        {
+
+        if (! $this->jsonDecodeEnabled) {
             return $response->getBody();
         }
+
         return json_decode($response->getBody(), true);
     }