diff --git a/CHANGELOG.md b/CHANGELOG.md
index 41440c5..5cccdc6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Trulioo SDK for Java Changelog
 
+## Version 1.0.4
+
+Support application/pdf in documentDownload
+
 ## Version 1.0.3
 
 Changed type of Model/AppendedField's Data from string to Object in order to allow WatchListDetails, returned as Map, parsable.
diff --git a/README.md b/README.md
index 7b0fd72..76197fb 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # Trulioo SDK for Java #
 
-## Version 1.0.3
+## Version 1.0.4
 
 ### Introduction
 
@@ -51,7 +51,7 @@ Add this dependency to your project's POM:
 <dependency>
   <groupId>com.trulioo</groupId>
   <artifactId>normalizedapi</artifactId>
-  <version>1.0.3</version>
+  <version>1.0.4</version>
   <scope>compile</scope>
 </dependency>
 ```
@@ -61,7 +61,7 @@ Add this dependency to your project's POM:
 Add this dependency to your project's build file:
 
 ```groovy
-compile "com.trulioo:normalizedapi:1.0.3"
+compile "com.trulioo:normalizedapi:1.0.4"
 ```
 
 ### Others
@@ -74,7 +74,7 @@ mvn clean package
 
 Then manually install the following JARs:
 
-* `target/normalizedapi-1.0.3.jar`
+* `target/normalizedapi-1.0.4.jar`
 * `target/lib/*.jar`
 
 ## Getting Started
diff --git a/build.gradle b/build.gradle
index 6aa7d6a..9202a2c 100644
--- a/build.gradle
+++ b/build.gradle
@@ -3,7 +3,7 @@ apply plugin: 'eclipse'
 apply plugin: 'java'
 
 group = 'com.trulioo'
-version = 'v1.0.3.0'
+version = 'v1.0.4.0'
 
 buildscript {
     repositories {
diff --git a/build.sbt b/build.sbt
index d5bdc02..108fffb 100644
--- a/build.sbt
+++ b/build.sbt
@@ -2,7 +2,7 @@ lazy val root = (project in file(".")).
   settings(
     organization := "com.trulioo",
     name := "normalizedapi",
-    version := "1.0.3",
+    version := "1.0.4",
     scalaVersion := "2.11.4",
     scalacOptions ++= Seq("-feature"),
     javacOptions in compile ++= Seq("-Xlint:deprecation"),
diff --git a/pom.xml b/pom.xml
index 750b86e..25b745c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
     <artifactId>normalizedapi</artifactId>
     <packaging>jar</packaging>
     <name>Trulioo Normalized API</name>
-    <version>1.0.3</version>
+    <version>1.0.4</version>
     <url>https://api.globaldatacompany.com/docs</url>
     <description>Trulioo provides a collection of API methods to help you build business processes powered by the
         GlobalGateway Normalized API.
diff --git a/src/main/java/com/trulioo/normalizedapi/ApiClient.java b/src/main/java/com/trulioo/normalizedapi/ApiClient.java
index 6159446..b9c16a6 100644
--- a/src/main/java/com/trulioo/normalizedapi/ApiClient.java
+++ b/src/main/java/com/trulioo/normalizedapi/ApiClient.java
@@ -749,6 +749,15 @@ public boolean isJsonMime(String mime) {
       String jsonMime = "(?i)^(application/json|[^;/ \t]+/[^;/ \t]+[+]json)[ \t]*(;.*)?$";
       return mime != null && (mime.matches(jsonMime) || mime.equalsIgnoreCase("application/json-patch+json"));
     }
+    
+    /**
+     * Check if the given MIME is application/pdf
+     * @param mime MIME (Multipurpose Internet Mail Extensions)
+     * @return True if the given MIME is application/pdf
+     */
+    public boolean isPDF(String mime) {
+        return mime != null && (mime.matches("(?i)(^)application\\/pdf($)"));
+    }
 
     /**
      * Select the Accept header's value from the given accepts array:
@@ -822,6 +831,12 @@ public <T> T deserialize(Response response, Type returnType) throws ApiException
         if (response == null || returnType == null) {
             return null;
         }
+        
+        String contentType = response.headers().get("Content-Type");
+        if (contentType == null) {
+            // ensuring a default content type
+            contentType = "application/json";
+        }
 
         if ("byte[]".equals(returnType.toString())) {
             // Handle binary response (byte array).
@@ -830,7 +845,7 @@ public <T> T deserialize(Response response, Type returnType) throws ApiException
             } catch (IOException e) {
                 throw new ApiException(e);
             }
-        } else if (returnType.equals(File.class)) {
+        } else if (returnType.equals(File.class) || isPDF(contentType)) {
             // Handle file downloading.
             return (T) downloadFileFromResponse(response);
         }
@@ -849,11 +864,6 @@ public <T> T deserialize(Response response, Type returnType) throws ApiException
             return null;
         }
 
-        String contentType = response.headers().get("Content-Type");
-        if (contentType == null) {
-            // ensuring a default content type
-            contentType = "application/json";
-        }
         if (isJsonMime(contentType)) {
             return json.deserialize(respBody, returnType);
         } else if (returnType.equals(String.class)) {
diff --git a/src/main/java/com/trulioo/normalizedapi/api/VerificationsApi.java b/src/main/java/com/trulioo/normalizedapi/api/VerificationsApi.java
index ab916c8..5f08ea8 100644
--- a/src/main/java/com/trulioo/normalizedapi/api/VerificationsApi.java
+++ b/src/main/java/com/trulioo/normalizedapi/api/VerificationsApi.java
@@ -94,7 +94,7 @@ public okhttp3.Call documentDownloadCall(String transactionRecordId, String fiel
         localVarHeaderParams.put("Content-Type", localVarContentType);
 
         if(progressListener != null) {
-            apiClient.getHttpClient().networkInterceptors().add(new okhttp3.Interceptor() {
+            apiClient.getHttpClient().newBuilder().addNetworkInterceptor(new okhttp3.Interceptor() {
                 @Override
                 public okhttp3.Response intercept(okhttp3.Interceptor.Chain chain) throws IOException {
                     okhttp3.Response originalResponse = chain.proceed(chain.request());