diff --git a/lib/client.js b/lib/client.js
index 9106023..602bcc1 100644
--- a/lib/client.js
+++ b/lib/client.js
@@ -8,7 +8,7 @@
     config.RECURLY_HOST = config.SUBDOMAIN + '.recurly.com';
     return {
 
-      request: function (route, callback, data) {
+      request: function (route, callback, data, headers) {
         var endpoint = route[0];
         var method = route[1];
         var that = this;
@@ -20,10 +20,14 @@
           headers: {
             Authorization: "Basic " + (new Buffer(config.API_KEY)).toString('base64'),
             Accept: 'application/xml',
-            'Content-Length': (data) ? data.length : 0
+            'Content-Length': (data) ? Buffer.byteLength(data) : 0
           }
         };
-
+        if (headers) {
+          for (var attr in headers) {
+            options.headers[attr] = headers[attr];
+          }
+        }
         if (method.toLowerCase() === 'post' || method.toLowerCase() === 'put') {
           options.headers['Content-Type'] = 'application/xml';
           that.debug(data);
@@ -45,6 +49,9 @@
                 if (responsedata === '') {
                   return _cb(res);
                 }
+                if (headers) {
+                  return _cb(res, null, responsedata);
+                }
                 return parser.parseString(responsedata, function (err, result) {
                   return _cb(res, null, result);
                 });
diff --git a/lib/recurly.js b/lib/recurly.js
index 81e4cce..7eee6a7 100644
--- a/lib/recurly.js
+++ b/lib/recurly.js
@@ -26,9 +26,9 @@
         t.request(utils.addParams(routes.accounts.close, {account_code: accountcode}), callback);
       },
       reopen: function(accountcode, callback){
-        t.request(utils.addParams(routes.accounts.reopen, {account_code: accountcode}), callback)
+        t.request(utils.addParams(routes.accounts.reopen, {account_code: accountcode}), callback);
       }
-    }
+    };
 
     this.adjustments = {
       get: function(accountcode, callback){
@@ -40,8 +40,8 @@
       remove: function(uuid, callback){
         t.request(utils.addParams(routes.adjustments.remove, {uuid: uuid}), callback);
       }
-    }
-    
+    };
+
 		//http://docs.recurly.com/api/billing-info
     this.billingInfo = {
       update: function(accountcode, details, callback){
@@ -53,7 +53,7 @@
       remove: function(accountcode, callback){
         t.request(utils.addParams(routes.billingInfo.remove, {account_code: accountcode} ), callback);
       }
-    }
+    };
 
     //http://docs.recurly.com/api/coupons
     this.coupons = {
@@ -69,7 +69,7 @@
       deactivate: function(couponcode, callback){
         t.request(utils.addParams(routes.coupons.deactivate, {coupon_code: couponcode}), callback);
       }
-    }
+    };
 
     this.couponRedemption = {
       redeem: function(couponcode, details, callback){
@@ -82,9 +82,9 @@
         t.request(utils.addParams(routes.couponRedemption.remove, {account_code: accountcode}), callback);
       },
       getByInvoice: function(invoicenumber, callback){
-        t.request(utils.addParams(routes.couponRedemption.getByInvoice, {invoice_number: invoicenumber}), callback)
+        t.request(utils.addParams(routes.couponRedemption.getByInvoice, {invoice_number: invoicenumber}), callback);
       }
-    }
+    };
 
     this.invoices = {
       list: function(callback, filter){
@@ -95,11 +95,14 @@
           utils.addParams(
             utils.addQueryParams(routes.invoices.listByAccount, filter)
             , {account_code: accountcode})
-          , callback)
+          , callback);
       },
       get: function(invoicenumber, callback){
         t.request(utils.addParams(routes.invoices.get, {invoice_number: invoicenumber}), callback);
       },
+      getPdf: function(invoicenumber, callback){
+        t.request(utils.addParams(routes.invoices.get, {invoice_number: invoicenumber}), callback, null, { Accept: 'application/pdf' });
+      },
       create: function(accountcode, details, callback){
         t.request(utils.addParams(routes.invoices.create, {account_code: accountcode}), callback, new Js2xml('invoice', details).toString());
       },
@@ -109,7 +112,7 @@
       markFailed: function(invoicenumber, callback){
         t.request(utils.addParams(routes.invoices.markFailed, {invoice_number: invoicenumber}), callback);
       }
-    }
+    };
 
     this.plans = {
       list: function(callback, filter){
@@ -127,7 +130,7 @@
       remove: function(plancode, callback){
         t.request(utils.addParams(routes.plans.remove, {plan_code: plancode}), callback);
       }
-    }
+    };
 
     this.planAddons = {
       list: function(plancode, callback, filter){
@@ -141,16 +144,16 @@
       },
       update: function(plancode, addoncode, details, callback){
         t.request(utils.addParams(
-          routes.planAddons.update, 
+          routes.planAddons.update,
           { plan_code: plancode,
             add_on_code: addoncode
-          }), 
+          }),
         callback, new Js2xml('add_on', details).toString());
       },
       remove: function(plancode, addoncode, callback){
         t.request(utils.addParams(routes.planAddons.remove, {plan_code: plancode, add_on_code: addoncode}), callback);
       }
-    }
+    };
 
     this.subscriptions = {
       list: function(callback, filter){
@@ -181,7 +184,7 @@
       postpone: function(uuid, nextRenewalDate, callback){
         t.request(utils.addParams(routes.subscriptions.postpone, {uuid: uuid, next_renewal_date: nextRenewalDate}), callback);
       }
-    }
+    };
 
     this.transactions = {
       list: function(callback, filter){
@@ -204,8 +207,8 @@
         if(amount){
           route = utils.addQueryParams(route, { amount_in_cents: amount });
         }
-        t.request(route, callback)
+        t.request(route, callback);
       }
-    }
+    };
   }//end class
 })();
diff --git a/package.json b/package.json
index d869925..5e40ddd 100644
--- a/package.json
+++ b/package.json
@@ -1,10 +1,10 @@
 { "name" : "node-recurly"
 , "description" : "Library for accessing the api for the Recurly recurring billing service."
 , "keywords" : [ "recurly", "e-commerce", "recurring billing" ]
-, "version" : "2.1.0"
+, "version" : "2.2.1"
 , "homepage" : "https://github.com/robrighter/node-recurly"
 , "author" : "Rob Righter <robrighter@gmail.com> (http://github.com/robrighter)"
-, "contributors" : [ 
+, "contributors" : [
   "Iván Guardado <dev.ivangc@gmail.com> (http://github.com/IvanGuardado)",
   "Rob Righter <robrighter@gmail.com> (http://github.com/robrighter)",
   "Dmitriy Shekhovtsov <valorkin@gmail.com> (https://github.com/valorkin)"
@@ -14,8 +14,8 @@
 , "directories" : { "lib" : "./lib" }
 , "main" : "./lib/recurly.js"
 , "dependencies" : {
-    "xml2js": ">= 0.4.0",
-    "js2xml": "valorkin/js2xml"
+    "xml2js": "0.4.5",
+    "js2xml": "philjackson/js2xml"
 }
 , "engines" : { "node" : ">= 0.4" }
 }